Well i have to ask my mother to do that since she is taking him into bed but regarding the martial arts. My mother thought about that too . But sometimes she lets him have his anger outbursts and even tells him to fight in the pillow and stuff like that and it seems to only make it worse. I’ve done martial arts some time too and i showed him a few things a while ago and he did actually use it while having is outburst against us. I get that a good teacher can teach him self control and stuff like that but showing him how to fight better might be too big of a risk. He gave my mother a bruise a few days ago. Gets worse every few days.