I don't want to drop the razor and cut my toe. Yeah, my toe.
Nope never and I never strop my straight razor when I'm naked!
I used to have a small cheap suction cup fog free mirror/shelf, but for fathers day this year, I got a mirror that connects between the supply pipe and showerhead. There is a small valve that diverts a trickle of water down the backside of the mirror. This keeps the mirror warm and thus, fog free. It's great.