Try to yell rude remarks outside the cupboard
From Create Your Own Story
Aunt Petunia yells from outside, "OH, NO YOU DON'T," and comes rushing into the cupboard with a bar of soap. Before you could protest, Aunt Petunia had shoved the bar of soap fiercely into your mouth. You choke and sputter as the taste of suds burns your tongue and throat. She then slams the door in your face.