I feed all my snakes in a seperate a container, so they never associate cleaning or anything else with feeding. Plus I feed them thawed rats and dont have to worry about substrate getting digest. Been doing that for 12 years with my oldest, never been bit before. I have been looking up hook training for that one snake. He has been the most agressive. Guess getting bit and feeling bad for not taking them out as much has got me down. Thanks for your reply.