I'd have lost it at the "does it grow back?" question if he was being serious... because what a question to ask. "Bob" must have skipped biology class
I noticed Nicks_Nose and DrSkipper were talking about that procedure, and while it's certainly not the same thing, there are guys who get circumcised as adults for cosmetic purposes too. It's a shame that our society judges people to such a degree that someone would be made to feel like they need to alter their reproductive organ's appearance. That's about as private as you can get.