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10+ Worst Things Sheldon Cooper Did On 'Big Bang Theory'

What? Sheldon Cooper is the worst? I can't possibly imagine him, of all people, doing something that would make people uncomfortable.

He's just such a personable character, and so loveable too!

Yes, this was sarcasm.

1. Making Sure Howard Didn't Get His PhD

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After years of making fun of Howard because he wasn't smart enough to complete his doctorate, Howard decided to enroll in Sheldon's classes in order to finish his PhD.

Instead of helping, Sheldon asked him really hard questions and made him feel dumb.

Howard never did get that PhD.

2. His Relationship With Amy

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Sure, you can argue that it's Sheldon's...weird personality that stops him from having a normal relationship with anyone, let alone a girl.

However, the way he treats Amy during the course of the relationship is despicable.

His Relationship With Amy (CONT)

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For most of it, he hardly gives her any attention. And when she does favors for him, he returns them in minuscule doses.

When she does eventually break things off, he produces a ring when he's alone. What makes you think she would've said yes, Sheldon?

3. He Insulted Penny For Being Pregnant

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So during the series finale, Sheldon wins the Nobel prize and while they're going to Stockholm to collect it, Penny reveals she's pregnant.

Instead of congratulating her, Sheldon insults her for "ruining his trip".

4. He Didn't Talk To His brother For Over A Decade

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Because of some petty B.S. around the time his father died. Sheldon thought his brother was being selfish, but it's revealed that it was Sheldon who was the selfish one.

Shocker.

5. He Was Bitter And Vengeful Towards Amy After The Break Up

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We've already established that the break up between Amy and Sheldon was long overdue. However, once it finally happened, Sheldon was very mean to her afterward.

Very mature, Sheldon. Very mature.

6. Tossing Penny's Clothes Out The Window

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At one point in the series, Sheldon was in a feud with Penny because she touched his food.

During this feud, he tossed Penny's clothes onto the building beside theirs.

Yeesh!

7. The Way He Treats Leonard

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Sheldon is a user. He just uses people to get his own way, and occasionally has a moment of redemption so we don't hate him.

Leonard gets the worst of this. Not only is he constantly dealing with Sheldon's neurosis, but he's also always driving him around, running errands for him, etc.

8. Ending His Friendship With Tam

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Sheldon had one friend growing up and that was Tam.

However, he didn't speak to him for years for the pettiest of reasons: Tam decided to stay with the girl he loved when Sheldon decided to go to Pasadena.

9. The Racist Stuff He Did

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While competing for tenure, Sheldon gives Janine Davis a copy of the miniseries Roots.

The joke is that she would like a film about slavery because she's black.

Shame on you, Sheldon.

10. He Constantly Insults Religion

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I know that these days it's cool to put down religion, but when Sheldon does it it's lame and cringey.

He constantly takes passages out of context and uses them to make people look "stupid."

11. Sheldon Abandons Raj To Deal With Rats

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During one scene, Raj and Sheldon are in some dark room trying to study dark matter or whatever.

At one point, they're attacked by rats and Sheldon leaves Raj behind to deal with them.

12. The Parking Spot Tantrum

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You know you're a bad person when someone can use "tantrum" to describe an incident that you had.

At one point, Howard gets a new car and starts to park in Sheldon's "spot."

The Parking Spot Tantrum (CONT)

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You'd think that would be fine, considering Sheldon doesn't even drive, but no.

Of course, Sheldon throws a tantrum and a war escalates between the two of them. Their girlfriends even get involved!

13. Made Leonard Wear A Really Itchy Sweater

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During the episode "The Itchy Brain Simulation," Sheldon forces Leonard to wear an itchy sweater just so he won't freak out about some DVD they rented years ago.

Just get over it, Sheldon.

14. The Time He Pulled A Prank On Kripke

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After being pranked a bunch, Sheldon pulled a really awful prank on Kripke during the episode "The Vengeance Formulation."

It involved a copious amount of foam and might have gotten him in a lot of trouble with several members of the university board.

15. The Time He Put Bugs In Leonard's Food

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This is one of the worst things you can do to a person, especially if they're not expecting it. There's an old saying that you should never mess with a person's food, and for good reason.

The Time He Put Bugs In Leonard's Food (CONT)

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Then again, he is Sheldon Cooper, and if he hasn't done at least eight inexcusable things before breakfast then it's an off day for him.

So are we even surprised he did this?

16. Mooning A Crowd Of People

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It's pretty safe to say that Sheldon Cooper probably shouldn't drink. Like, at all. Whenever he does, he becomes a far worse person, and that's saying a lot for Sheldon.

Mooning A Crowd Of People (CONT)

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Case in point: "The Pants Alternative."

Sheldon is too scared to speak publicly, so Penny gets him real drunk and he proceeds to moon a crowd full of people. How embarr-ass-ing.

17. When He Taught Penny "A Little Physics"

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Penny went to Sheldon in order to learn a little bit of physics. Instead, he taught her a bunch of stuff that was actually dissing Leonard's work, which is obviously not a good thing.

18. He Randomly Became Protective Of His Spot

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At the beginning of the series, Sheldon apparently had no problems with people sitting in his spot.

However, seemingly out of nowhere, he became super protective and obnoxious about it.

19. He Uses Internet Explorer

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If this list is to be believed, Sheldon Cooper has done a lot of bad things.

A lot of things that would classify him as a bad friend. A lot of things that would classify him as a bad person.

He Uses Internet Explorer (CONT)

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But this screenshot not only proves he's the worst kind of person, but should be immediately discounted as a smart person.

How could he? He can't even look up any information on that crappy web browser.