Why is this so funny???

A guy walks into a doctor's office with a duck sitting on his head.

The doctor asks, "Can I help you?"

"Yeah," says the duck, "can you get this man off my butt?"

I'm not a dude, but quite a few people have though I am. I like to think of it
as being in touch with both sides of my... what do they call it? Well, being in touch with myself.