David Letterman Takes Aim at NFL Replacement Refs With ‘Top Ten Signs You’re a Bad Referee’ (Video)

Everyone, including late-night talk show host David Letterman, is getting in on the NFL’s replacement referee’s incompetence.

Few things are sacred in the world of late-night television and rarely does anything of note avoid making it to Letterman’s famous “Top 10” segment. The latest iteration of the list gives the “Top Ten Signs You’re a Bad Referee.”

Check out the clip below.