He put holes in his apartment walls when he got angry.
Does he have a history of committing violent acts like this?
Yes, he has committed acts of violence before.
You should talk to him and explain to him that he shouldn't damage other people's property. Violent, damaging outbursts can injure someone and are not the proper way to handle your angry. Try to get him to seek counseling.
I don't have time for all that. I smashed his face in with a shovel.
Woah, that is extreme and only going to escalate the situation. I know you want to hurt him back, but the best thing to do is contact authorities and have them handle this.