It's funny really, I was watching the "Deadly Reptiles" programme on Nat geo this evening and some guy was demonstrating how non-aggressive snakes really are. He found a Copperhead and poked it, trod on it, poked it with a stuffed glove on the end of a set of tongs and it only bit when he picked it up and squeezed it with the tongs. Yet yours is as snappy as anything. It goes to show that you can't generalise a species as docile or bitey. As i said on the other forum, she's really nice looking
