I agree with everything BCR has said here. Though every animal is an individual and will not necessarily act in accordance with what is the norm for the species. A couple years ago I spent thousands of dollars in vet bills and enormous enclosures for a persistent pusher of a retic and nothing could be done to curb the behavior. Sometimes a pusher is just a pusher and nothing can be done. The only thing that stopped it for any amount of time was giving the animal an entire bedroom to herself overnight. Pushing would resume as soon as she was back in the enclosure.