I've handled super worms for a long time now and I don't believe I've ever been bit. I have noticed a pinch a number of times but I'm almost positive it wasn't coming from where their mouths would be. Just my opinion but maybe someone would want to test this out. I no longer feed supers otherwise I'd try it for myself.
**Side note: It doesn't hurt either, its a small worm so don't be scared **
**Side note: It doesn't hurt either, its a small worm so don't be scared **