Some friends of ours decided to give us their hermit crab- we thought it would be a great low maintenance pet for our 3 year old. Mommy is still getting used to the idea, but our 3 year old is in love. We put the the tank in his room and he promptly told us it was "Taxi-crabby's" nap time. He took my cell phone and put it in his room and put pandora on so crabby could listen to music and turned off the lights. Then he proceeded to tell us all to be quiet while he was napping. Two hours later he said "I think that crabby likes me!"