John McEnroe wants to stick his 50-foot arm up your ass.

(click ad) Mac is my favorite all-time tennis player (who's lefty sideways service style I badly imitated in high school), and he does a good job as a color commentator. But this monstrous image on the side of Madison Square Garden of the angriest man to ever hold a racket makes me even more fearful of getting my prostate checked, GlaxoSmithKline. Thanks to Evan Lambert for the pic. Previously in: prostate cancer-related ads.