Ive had my two buns since the 21st , theyre indoor until the weather warms up, so they get time out of their hutch to run around the living room. Usually they just hide under the sofa and poke their heads out now and then, but as i type theyre hopping around the living room chasing each other and bouncing around, Bugsys even sat right next to me and Thumper (normally very nervous) has even clambered over me. But there are a few lumps in my carpet (the carpet layer wasnt very good) and Thumper keeps biting them and pulling the carpet up slightly. Will it do him any harm? xx