Why do you play Call of Duty?
I actually don't know.
Okay, listen up, slowpoke. This joke is funny 'cause it sets you up to expect a reason why someone plays "Call of Duty," but then it just says, "I don't know." It's like a big ol' nothing burger. Some people think that's funny because you anticipate a punchline and get zilch. It's called anti-humor, genius. You probably play video games all day and don't get outside much, right?