There’s no bigger taboo in live sketch comedy than “breaking,” which improv actors view as a cardinal sin, but audiences can’t help but find infectious and adorable. (Saturday Night Live bossman Lorne Michaels is famously opposed to it.) There are also plenty of breaking moderates—those whose care enough about the sketch comedy craft to prefer seeing it played straight, but understand how much fun it can be when the performers are just as tickled as the viewers are. Saturday Night Live offers the best examples of breaking, with the title of history’s worst offender going to Bill Hader, who literally never made it through one of his Stefon segments on “Weekend Update” without melting into a giggly puddle.