As I said on another board... I personally eh getting my goose up over dis, fuh all we know dat is how dem fellas and dem does get down: cuss each other stink on de set, den every Friday go tuh de pub and knock ah couple back like is no scenes. Sad to say, but these "artists" and dem temperamental, and meltdowns like these are a lot more common than many of us are aware of.
Never an excuse for the behavior... but those involved know what to expect.