Why did the time traveler bring a ladder to the party? Because he wanted to time himself a good time!
Why did the predestinationist bring a compass to the party? Because he wanted to navigate the conversation!
Why did the predestinationist break up with his girlfriend? Because he knew they were fated to break up!
What did the predestinationist say to the bartender? "I'll have a beer, and a predestined pint."
Want more time paradox puns? Check out our predestination puns!