my cousin is a piece of shit

he literally threatened to kill me all because i didn't let him go one my laptop. he literally sat right next to me and went "you're gonna wish you haven't slept over, because when you're asleep i will tie you up and stab you." im not scared or anything, he's a lil pussy, ik he wont do it. but he's like what ??? three years younger than me? and carries twenty plus pounds on me... and on top of that he had the audacity to call me a "dumb bitch" like im not the one slamming a two years old face into the door and asking people to stab him?? the fuck...