I just got bitten a few hours ago! It was feeding time and I was placing her in her feed tray - which she knows - and she was so enthusiastic that she mistook my hand for a rat. (I never touched the food but she probably just saw 'warm moving thing, YUM')

I yelped but it didn't hurt much actually. The snake let go and looked all bewildered for a minute! Then she found the rat and ate without further problems while I found a band-aid. It's all my fault, really, for getting too close to her hungry snout