Circumcision
(media.scored.co)
I wish I hadn't had my son circumcised. I didn't know anything about it at the time...I was circumcised as a baby, so I figured it was the thing to do. If you know anyone considering it, just have them watch a video of a circumcision. There's plenty to be found...it's considered "medical knowledge". That'll change their opinion real quick when you see a baby go through that.