You and Tom are in a relationship.

Tom doesn’t allow you to smoke, though he smokes himself. He says it’s bad for your health.

One night, you stole a cigarette from his pocket without him noticing since he was asleep. You opened the balcony door and lit up the cigarette. Before you could take a drag, Tom took the cigarette from your hand and threw it away. He leans close to your ear and whispers.

“What do you think you’re doing?”