There’s a humour in unexpected arrangements; I guess most know it as irony.
Irony is the comedy that arises from events occurring opposite to what one may expect. In other words, the more expectations you have, the higher likelihood of ironic situations.
“Well aren’t things not going the way you would expect just called disappoint?” you may ponder.
And no, that’s really a matter of perspective.
Look at this dog. He was obviously not expecting to be in a hair salon while other dogs were out for walks.
I really liked how he was poised by the door as if he was the owner, watching pedestrians move quickly past.