Michael, strictly speaking, does not work here. He's spoken to Tim often enough, but never about that. But his time spent as a human bartender was a fun lark, and he enjoys playing the same role here from time to time. Not like it's hard - you give maybe three people a drink and snacks, and then you get to chat for a while! It's fun!

He can tell Crowley is another demon, of course, and Crowley can probably tell the same about him. But as far as Michael is concerned, all that's been hashed out already. No threats to humanity; no problems.

"Your options are water and tea. Decent tea selection, actually. No urine, no antimatter." Both of those are common drinks in Michael's version of Hell. Is it the same in Crowley's? He has no idea, he's just spitballing here.