Deep Thoughts by Jack Handey

If you ever crawl inside an old hollow log and go to sleep, and while you're in there some guys come and seal up both ends and then put it on a truck and take it to another city, boy, I don't know what to tell you.

Here's a good joke to do during an earthquake: Straddle a big crack in the ground, and if it opens wider, go "Whoa! Whoa!" and flail your arms around, like you're going to fall in.