First ball python I ever owned, his name was Pie, used to get weekly swims in the bath tub. I would leave him in there for about 10 minutes with very shallow water level. It never failed in the 30 or so times I soaked him. When I would attempt to take him out he would pee. Not kidding always happened. My friends used to swear I was lying till I showed them. Big old pie is the biggest male ball python I have ever seen, at around 7 years old he has retired from my racks and now lives in a big 40 gallon tank at my friend Henry's house. Every now and then I pass by to give his RTB some leftover rats and I always ask to put him in the tub. Doesn't do it anymore guess he grew out of his wetting the tub stage. Lol