My leo, Gordon, has tried multiple times to attack me thru the glass of his tank. I just bought him from a friend, he is bout 6 months old. I sit there and look at him and he gets his slow defensive tail wave happening then right before he jumps, he gets his tail waiving really fast. The he jumps at me and tries to bite me. I also don't believe that he did it because he was hungry, because he just ate.