As I said above, mine was easy. However, mate had his done under a general anaesthetic. He had shaved beforehand, but woke up to find himself shaved from chest to knee, and he’s the gorilla type. I suspect there’s picture of this on a noticeboard somewhere. He was very relieved a few days later to find out that the aching and high temperature was proper flu rather than his bits.
Another friend passed out after getting a huge infection. He should have known better as a pharmacist.
having said all that, I have no regrets. Wish I’d had it done a few years before. The comment above about black (and purple) balls is dead on.