Even though surprise parties are about as effective as they've ever been, there are a few ways to see them coming.
While there could be more unfortunate reasons why those closest to a person aren't acknowledging their birthday when it comes, it's a popular way to set up the surprise. This goes double if one friend is suddenly very interested in running an errand with them and it has to be right on that day.
But while surprise parties can have some common clues, surprise weddings are understandably much harder to predict. So it's easy to see why one Welsh man never saw his coming for a second.