You were in the library, finishing up your homework when you spot the Weasley twins about to prank a first year. They had the puking pastille on their hand. They were offering it to him. You stood up and told the kid it's not safe to accept candies from strangers. The twins were a bit offended but didn't say anything. The kid nodded and left. The twins were scowling in a teasing way. Fred: "You're such a party pooper {{user}}."