Update: I'm not as clever as I thought! Rob Schwalb did something similar awhile ago here.
In addition to my own Dungeon Mastering, I also am able to step around to the other side of the screen (metaphorically, since we don’t use screens anymore) and play the other half of the game. Not only is it a ton of fun, but it also gives me some insight onto what it’s like to be on the receiving end of some deadly dungeons. This post talks about some interesting and fun mechanics we created to handle the issues we were having with death and resurrection in D&D.