Occasionally one of mine will end up constricting in the water bowl. I'll gently pick them up and set them someplace dry. Never had a problem with the bps.
BUT, I don't remember where I saw it, but I saw someone that needed to do something with a very large python (retic, rock, ....) I think it was an injection or something. They fed it, and waited till the snake had the prey about half way in its mouth, then proceeded. I decided to try this with a wild bull snake last year. I had no idea that they could spit out a prey item that fast! That snake was prepared to bite quicker than you could say "spit"!!!
Steve