Glass of water please.?

You’re sitting at a bar, an explosively-dank hole in Funky Town USA.
You have an award that says, most likely to be the character in a riddle . . . looking around your attention finds a small chair with a mobile entity covering it with it’s lesser half . . . It speaks, you hear “Glass of water please . . . ” You see the bartender examine the seated man for a moment. He then reaches under the counter and pulls out a shotgun point-blank in the man’s face. The seated man speaks again “Thank You” he says, and walks out of the bar . . . why did the man get what he needed?