Repression

Your mother comes bursting in the room.

"What the fuck are you still doing in fucking bed? Its time for you to get your ass up and go to fucking school! What the fuck are you doing with your hands under the covers? Are you fucking jerking..."

Before your mother can finish her rant, you flip your covers off and shoot her in the head.

Wow. You didn't realize you were that good of a shot, you weren't even aiming.

Your mother slumps to the floor and you jump out of bed, fully dressed for today. You hear your sister running up the stairs screaming, wondering what's going on.