[Wuerstchen]

Apparently, I get to spend they next 8-12 hours in the hospital having surgery to remove a large kidney stone. During the procedure, they'll be placing a stent, which is basically a long plastic tube trough the urethra.

This is probably the first time I've ever wished I didn't have an extra 8" of urethra to go through, because it is going to be very painful.

I am assuming the eight inches is the erect length of your urethra. I will be very surprised if a tube up your urethra causes an erection. As the recipient of several cystoscopies myself, I can comfort you with the prediction that your penis will probably respond to the procedure by shriveling to a tiny nub.