We were in the local branch of Pets at Home looking for a new cage for one of our hamsters, when I saw a shape dart across the floor - something grey and kitten sized. I walked to the end of the corridor and saw a member of staff stalking an escaped chinchilla. It was too fast for him and kept scurrying away. It had quite a funny running/bouncing action. When we left the shop it was hiding under some shelves.