I think jabbing myself with a sewing needle is actually MORE painful. Lol
I haven't been bitten by any of my balls yet (though I'm sure it's an eventuality), but my Brazilian Rainbow Boa tagged me once. I thought it was a closed-mouth strike until I saw the tiny spots of blood. :P
Also, since the title of the thread is "snake bites"... I have a piercing called snake bites! Haha