I do the same.
When I show up for my reservation, when I see a person in Ute gear I hand them a set of fake car keys and tell them I'll be back in an hour and a half and say thanks... not even a smile.
When they get mad because of their lack of humor, and I go all Rancherito on them, I give them a lift to the U of U Hospital as a courtesy because they are so good there, but they never really appreciate it.
At the gas station when I tell them how many gallons I need, they usually get mad and prolly think I'm classless... but I'm just having some fun.
We should all relax a little, right.