I hadn't seen your piece on vaccination, no. I've only just started reading LJ again. Couldn't use my energy here when I had other things that needed doing. Will give it a look though.

In some cultures, circumcised men actually use very fine sandpaper on the head of their penis to regain sensitivity. So would be interesting to see ten or twenty years down the track whether the guy who found greater sensitivity still felt that way. Maybe he'll find he's lost some, or maybe the whole sandpaper thing got started by one weirdo and got taken up by lots of others.