it was the first time he has ever done this and i thought it was so funny. please let me know if anyone else's BD does this or any other funny stuff. i reached in the tank and decided to pet yoshi on the head now here is the funny part every time i would rub his head he would lift is back leg and scratch his head where i was rubbing. it reminded me of a dog scratching its head. he did not do this just one time he done it every time i pet him on the head lol.