A time traveler walks into a bar.
He orders a beer and a shot of whiskey.
A time traveler walks into a bar.
He orders a beer and a shot of whiskey.
Listen up, chucklehead! You think this is just some random guy ordering drinks, huh? Nope! This dude's from the future (or the past), so the joke is that him walkin' into a bar is funny because time travel be wild.