I am a burm owner and I never ever let it get that far. I have precautions when working with my snake. She is hooked trained, she knows when she is coming out of cage or being fed.
But with all large snakes there should be a rule, always have a second adult in your room with you at all times when working with an animal like this.
Place safety precautions when working with large animals and you never have to worry about a bite or attack.
But seriously, why do you need to use alcohol, listerine, or Hot water?? Its a Cornsnake for Chrissakes.
Heck, anything around 5 feet, I am not worried about unless its a hot. This includes, milks, kings, ball pythons, and other small species of snakes. I have known old time herpers get bitten by a six foot snake and just take it.
If you are going to keep herps you just gotta learn how to just roll with it on the smaller animals and make precautions for the large ones. You should be fine.