Road Rage Driver Head Butts Cars [Video]

A guy in western Australia was arrested on Monday after he crashed his car on the freeway, got out . . . and started attacking random cars and HEAD-BUTTING them.

Someone caught a few seconds of it on their dashboard camera, but it apparently went on for 10 minutes.  Police say the man might have a history of mental illness. Excuse me -- MIGHT? Gee, ya think?