I tried to train mine, every time an angel(ha-devil) was gonna attack the other I would point my finger at it and say 'NO', it would stop. for about 5 seconds. But each time, I put my finger up, it would not even advance,you can always tell when it's gonna charge, a couple of times of waving my finger at it, then it would just swim in another direction instead. I bet it said to the other"I'll get you later!"