...just poop it out? (lol).? I (stupidly) put a bouncy ball in her cage. which she loved to roll around and jump on and chew. I heard her nibbling and looked at the ball only to find she had nibbled a little bit off. Should I be concerned?...
Depends where you got that glowing ball. At the pet shop of a dollar shop. It may or may not be poisonous. Most of the time the rat will be fine, because rats normally chew through plastic and the like. But considering that the rubber ball may stick to the inside of it's intestines it is your best bet to take it to the vet.
Nah. Rats are naturally inclined to eat just about anything in nature. I'm sure she will just poop it out. Rubber is not digestible. Your screen name is awesome, btw.