As an aside, the first episode of It's Always Sunny In Philadelphia that I ever saw was one where Charlie and one of the other guys were trying to fake their death. There was some conversation about leaving identifying evidence, and Charlie pulled out a couple of his teeth. The other guy was horrified, and Charlie was explaining, "No, no. You can pull them out. They go right back in." I knew at that moment that I was going to like the show.
My ancestors fought cave bears so I could make this post.