Heh! Amusing! I've done a bit of that now and then but mostly I keep my eyes open so I can see all the little glows and light leaks in my darkroom. It takes a while to see it and after a bit sometimes I can see where I'm putting things, kinda like working with shadows of an image instead of the real thing. Never had any film fogged while doing so, I guess my Xray vision is not that powerful.