[ he's plenty of fun, he's just hungry. he doesn't have his gun. and he's craving a cigarette. he's at a net zero of his creature comforts and he needs something to complain about, as a result.
Vash made the mistake of making himself a target of his unbridled ire.

Hands in his pockets, he will follow the humanoid typhoon, though. once arriving to the mess hall, though, he DOES have to look around in mute confusion.
usually when you go to a restaurant, there are employees or at least a cook. ...huh. ]

...
Seriously, you just have free reign of the kitchens here, wait.
What's stopping me from just. Eating that entire box of apples down there.