Anger Management Easter Egg - Real-Life Anger Problem

In the scene where Dave and Buddy are on the roof of the parking garage and some guy parked his Lexus behind Buddy's car, leaving him no room to get out.
Buddy takes a baseball bat, smashes the Lexus' window and puts it in neutral, allowing him to nudge it back. But right before he does this, he opens his car door and pulls out a golf club and a baseball bat, looks at both of them, and decides to use the bat.
Well, in 1994, Jack Nicholson got a lot of bad publicity when he smashed in some poor guy's windshield with a golf club. I guess from experience he knew that a club doesn't do much damage....