Remember Anthony Michael Hall, the nerd from Breakfast Club? Sure you do, but you might not recognize him now. The dude's gotten taller, beefed up and, apparently, has gone insane.

Former Brat pack star Anthony Michael Hall -- best known for his roles in 1984's Sixteen Candles and in '85's The Breakast Club -- allegedly "bit his girlfriend's forehead" and "pushed, shoved and spit at" her during an altercation at her New York apartment earlier this month, according to police.

Police were called to the apartment of Hall's girlfriend, Sirius Radio host and columnist Diana Falzone, Nov. 10 following a fight around 2 a.m. Nov. 10, according to RadarOnline.

The next day, police told Radar that Hall returned around 3 a.m. "intoxicated" and banged on Falzone's door until officers removed him from the premises.

Earlier this month, Falzone obtained a temporary restraining order to keep Hall away from her following the end of their one-year relationship, Radar reports.

Hall spoke to detectives at New York's Midtown North precinct house Nov. 17, but is not under investigation in connection with the incident, police tell RadarOnline.com. (Us Magazine)

He bit her forehead? How insane do you have to be to do that - "Hey, this girl's being a bitch. You know what would shut her up? If I bite her on the top of her face!" I'd go back to being the nerd, Anthony. Sure, you didn't get Molly Ringwald or Ali Sheedy, but you also didn't have your teeth marks in someone's face. Think about that.