Heh heh, there actually was a RPG called TimeLords (by BTRC) that had you create "yourself" (lots of physical tasks to determine your stats and guidelines to determine your mental skills). The set-upp is that you and your buddies are about to play D&D when some guy shows up, throws something that looks supiciously like a 20 sided dice at you, then WHAM, everything within 10 feet of the center of the table is teleported back in time. Then the game begins...
We always wanted to start that game while sitting next to my friends father's gun collection! Do it in the right spot in my house now and I could overthrow a few iron age empires <img src="/images/graemlins/smile.gif" alt="" />