It's honestly hilarious how Cudi tries to carry himself like a "rockstar" and promotes all that Mr. Rager shyt but he acted like a complete p*ssy during that exchange. These rap nikkas are so sensitive lol.
Case in point: watch how an actual rockstar handled a similar situation. Talked his shyt, threw the bottle right back at the dude, got security to kick him out, and went right back into the next song without missing a beat.