Since we're on the subject, I used to *LOVE* doing this kinda thing to myself
Eventually I began inserting several needles right through, out the other side (sometimes on BOTH at nuts once!).
Then I would use a lighter to heat both ends of the needle simultaneously until it reached about boiling temperature! :p
Funnily enough, it didn't really hurt much: Only the enterance wound made by the needle (on the scrotum) STUNG badly, then blistered up *real* bad. Sometimes this inside swells real bad too.
My abdomen/testicle area tingled slightly. Huh, I guess as the testicle began to cook from the inside; but this tickling sensation was about all I felt.
I'm sorry if I've grossed anyone out here
Sadly I bear many scars as reminders of the terrible things I did
-TheFraj.