It was weird.

He wasn't a douche but this was still pretty weird. My buddies and I were going into the Tower Records in Hollywood in the early 2000s and just as we were entering, a nondescript fellow and lady were exiting. We passed each other and when they were about ten yards behind us, the guy said "Hey guys! What's up?". We turn around and sure enough, it's Pauly Shore. We stare at each other for a second and then my friend says "Oh shit it's Pauly Shore! What's up dude?". At this point, Pauly grabs the girl by the hand and just takes off running. Then I bought a Dream Theater album. It was weird.