Why is a person who plays the piano called a pianist but a person who drives a racing car not called a racist?

Why are they called buildings when they’re already finished? Shouldn’t they be called builts?

Last night somebody broke into my apartment and replaced everything with exact duplicates... When I pointed it out to my roommate, he said, "Do I know you?

One time a cop pulled me over for running a stop sign. He said, "Didn't you see the stop sign?" I said, "Yeah, but I don't believe everything I read"

How do you get off a non-stop flight?

I turned my air conditioner the other way around and it got cold out. The weatherman said 'I don't understand it. It was supposed to be 80 degrees out today.' I said, oops

You know when you're sitting on a chair and you lean back so you're just on two legs and you lean too far so you almost fall over but at the last second you catch yourself? I feel like that all the time.