Thanks to an impromptu event in the 'Completely Random Thoughts' thread we have a new game.
The idea for this is that someone will provide the set up for a potential joke, with only the punchline left off the end. Subsequent posters will then try their hand at finishing the joke. And, just like in so many other threads (e.g. 'The Photo Riff Thread (a.k.a. Photo Captions)') it continues with that set up until people have run out of punch lines &/or someone posts a new set up. Like with the Photo Captions thread, it is also not necessary to build on any prior set up if you don't have a punch line for any of the ones already presented. You can just add a new set up if you have it ready. [And also like the Photo Captions thread, you can go back and choose any earlier set up to give a punch line for if you wish.]
It also isn't obligatory that the person finishing the previous joke set up the next one. Some people may have more skill at one or the other, so may only want to contribute 'set ups' or 'punch lines'.
Let's start with:
A man walks into a bar that is nearly empty. There's a sloth sitting at the bar nursing a drink (as would be expected).
The man sits down beside the sloth and says, "hmm... looks like a slow night."
The sloth replies: