I don't understand why everyone is getting carried away with this. If he is going to supply them with water food and change there tubs every week what is the big deal? I don't know about you but I don't hold my rats and play with them I have them to breed for me nothing else! That and I don't keep any rats that aren't breeding I'm not going to pay to feed and water a rat if its not going to produce anything. Just my opinon