A guy walks into a restaurant. He sits down and this ugly waitress comes over. He then orders a hamburger and a hotdog. So five minutes later the waitress comes back with a plate with only a plain hamburger bun on it. So the man asks, "Where's the burger?"
Then the waitress lifts up her arm and pulls out a burger from her armpit and says, "I was keeping it warm."
Disgusted, he says "Please cancel my hotdog..."
...Or I think I should have a go at another joke next time...