2. Bill Romanowski‘s infamous spit

Bill Romanowski is unquestionably one of the dirtiest players in NFL history, and I doubt even the biggest Broncos fans would deny that. And of all the questionable things he did during his career, this spit into J.J. Stokes face is the one that has stood the test of time.

Poking a man is mean; spitting in his face is as disrespectful as it gets.