Another option

Monica suddenly had a thought, maybe she didn't have to got to school today, She hadn't taken a sick day in a while. Mind made up she quickly pulled on a big black t-shirt with a skull on it and a pair of panties and ran to the bathroom for those constipation relievers her great aunt had left the last time she visited, two pills and a spray to relieve nasal congestion and she was set.

By the time her mom came knocking on the door wondering where she was, Monica was laid up with what seemed to be a stomach bug, weird stomach sounds and a runny nose made her look like the poorest wretch sitting on the bathroom floor.

Gasping in dismay in the overblown way those of delicate upbringing did, her mom soon had her gathered up in bed with blankets and herbal tea and the doctor on the phone. Monica smirked to herself. She had done it! She beat that little witch.