You should never get so angry that you hit someone.
Matt is with him roommate cooking dinner in the kitchen of their shared apartment.
Matt wants his roommate to clean up after himself.
Matt asks his roommate to clean up for himself or else he'll move out.
Matt angrily confronts his roommate about the messy kitchen and hits him so hard that he falls backward.
Matt's roommate is afraid he wouldn't be able to pay the entire rent by himself and agrees to clean up after himself, making Matt feel happy.
Matt's roommate stumbles into the kitchen window and shatters it, causing Matt to spend hundreds of dollars on a new window.