Beer Balls
Alcohol and anger go together like two peas in a pod - alcohol releases anger and aggressive behaviors.
For example, you're leaving a baseball game after having a few beers. Your team lost and as you walk out of your section, you're bumped by a guy wearing the jersey of the visiting team. So you act with rage.

Drunk man: wtf .. (screaming from a distance)
Girl: That man is out of control.
Girl 2: Talk about beer balls