I just added a YT a week and a half ago, and the YT keeps trying to beat the crap out of my rabbit. The YT is going back to the store this weekend. My rabbit has suffered (and is healing well) an eye injury from being "tanged". The YT is fine and then just goes berserk on her. This causes my rabbit to hide, she's so docile and peaceful. I adore my rabbit, so yellow has to go.