I think it probably could be done, but I'm not sure I'd recommend it. I trained my sheltie to ring her poochie bells when she needs to go out to potty. Problem is, she started ringing the bells when she just wanted to go out, rather than needed to potty. And not to say I don't want to let her run around outside several times a day, but when it's 4 am and she's ringing the bell, it better be for potty and not cause she wants to expend some energy if I have to drag myself out of bed. The poochie bells are still hanging on the door, but we've sort of let the behavior extinguish itself because at least half the time we'd take her out, she didn't really have to go, she just felt like going outside. I could see the same thing with the chinchillas... they get the idea that they ring the bell, you let them out... well... mine would never stop ringing the bell! Haha. At least mine go nuts enough on the toys that have the bells... I can't even imagine if they associated something with ringing them!