I have a w/c one who everytime I go by his tank he strikes at me. Full of piss an vineger this one is. I make sure to wear gloves when I reach in to his tank for cleaning or getting him out. He draws blood everytime I dont lol Every cpl of weeks I toss in 3 rat pinkies for him and leave the room or he wont eat while you watch him. They tend to be on the cranky side. Now he does calm down a lil when I am handling him, and I guess he figures out I'm not gonna hurt him.