Why do you think no TV network schedules their primetime shows on the night of the Super Bowl? That’s right, because why lose an audience that will definitely watch another event? This rule actually works for smaller, personal events too – and yet, there are still people who violate the rule on a regular basis.
Of course, there are exceptions to every rule, but even here, this story from the user u/BakersTea really stands out, where a couple of friends once persistently tried to invite her to their baby shower – right on her wedding day!
More info: Reddit