4. Bill Romanowski
We wonder what Bill Romanowski would have been like as a person if he hadn’t taken all those steroids. But he did, and he was a poster child for “roid rage.” One of the dirtiest player in league history on the field, he eventually took out his rage on a teammate.
Romanowski once ripped off a teammates helmet during practice and then punched him in the face. The punch crushed Marcus Williams’ eye socket and the backup tight end was forced to retire due to the injury. Romanowski was crazy.