9 times out of 10 this douche bag would grab another tables order, or mess up serving flow because he thinks his brain is operating in a different level than the lowly servers.

What if the table that was sat before you had the same order as you, you impatient asshat?

Stay at home and nuke burritos if you are too childish to wait your turn.

Yeah this is unacceptable behavior. That said I think this is something that ought to be just explained to him because he might legitimately be a total dumbass.

That said I wish more restaurants were like Fuddruckers or Firehouse Subs and just let me grab my food from the counter myself once it was done. I don't really want to pay someone to carry my food & drinks to me and be possibly insincerely nice to me to increase their tip or whatever.

That's actually annoying as fuck.

Ask him if he wants to come back to the kitchen and wash his own dishes while he's at it.

How's his patience behind the wheel of a car?

Now we have beige flags? Soon there'll be burnt umber, fuscia, striped, herringbone, and eventually they'll have gone to plaid.

The redness of this flag is 100% dependent on his demeanor, it could easily go either way. If I'm working and a customer volunteers to help me do my job in a manner that is clearly not hostile or insulting I'd call that a good thing.

The whole ritual of being served at a restaurant makes me queasy. But I'd never dare interfere in it. Never!

Also, when the food takes long to arrive it's a good sign: they took time to prepare it.

Man, I don't even feel comfortable grabbing my own plate at a buffet.

Imagine his partner is in labour for hours. He gets impatient and just grabs a baby from the nursery and brings it to her with that smile. Like I’m hundred percent sure that if he does this regularly he has grabbed plates that were meant for other tables.