Oooh, I like this. So does Matt scream and throw something or punch a wall and then Foggy jumps and flinches and drops to his knees on the carpet, biting back whimpers of fear? What if they're having a playful argument and Matt snaps 'fucking quit it' or something, and Foggy instantly shuts up and his heartbeat races? How does Foggy handle Matt getting up in someone's face when they're a dick to Foggy?
How does Matt comfort Foggy? Try to hug him, but Foggy flinches from the touch? Reassure him that he's not going to hit Foggy, even though he just threw a glass at the wall? Does Matt realize that it's still not cool to do that? Does he attribute all of Foggy's fear to his trauma/past?
Re: Slave!Foggy has a hard time with Owner!Matt's violent streak
How does Matt comfort Foggy? Try to hug him, but Foggy flinches from the touch? Reassure him that he's not going to hit Foggy, even though he just threw a glass at the wall? Does Matt realize that it's still not cool to do that? Does he attribute all of Foggy's fear to his trauma/past?