Every day in Los Angeles..hahaha! Still funny though. The quickest way to make sure you aren't allowed to merge is to use your blinker in L.A. Cars will tighten up to each others bumpers to make sure you never get to merge, even in 5 mph traffic where it really doesn't matter.
I saw a guy not too long ago get out and knock another guy out at the stop light cuz he cut him off. He got out calmly walked up to the guys car that was nosed in front of him and socked him in the face. The guy slumped over in the seat and his car drifted into a fence across the intersection. Everyone, including the guy that socked him, drove right off as if it didn't even happen. Only in California!