Stuck in a...?

You come home to your shared student flat and collapse on the couch. Exhausted. What a day. You spent hours in the library preparing for some useless exam. "I'm home" you call your roommate. "Let's cook something. I'm starving." "Help!" you hear your roommate and then some banging sounds from your roommate's bedroom. You jump to your feet and suddenly your roommate stumbles into the living room with ${What is your roommate stuck in? (e.g., a toilet bowl)} pulled tightly over the head. Your roommate is clearly stuck and struggling. You are astonished to say the least and can barely suppress your laughter. What do you do?