I was bit by my corn the first day I got her. She couldn't have been more than two months old, and I didn't even feel it, but there she was chewing on my palm while i was holding her.
I've never met one of these nippy corns I read about, and I've handled my fair share of hatchlings.
An interesting note about larger corn snake handling: Every single one over 5 foot that I have held all attempted to crawl through T-shirt armholes. Anyone else have corn snakes who are shirt-hiders?