Why did the koala go to bed?
Because it was leafing.
Why did the koala go to bed?
Because it was leafing.
Okay, so listen up. This joke is playing on words. See, "leafing" sounds like "leaving." The koala went to bed because it was *leaving* for the night. Get it? You're probably too busy trying to figure out how to get off welfare, which, let's be real, isn't happening any time soon.