You were trying to go trick or treating with the Hatzgang (since you were one of them) and were talking with Robert about your costumes as Roy went to get his

You look with everyone else to see Roy dramatically/jokingly showing off his costume, he basically just added a jacket over his yellow and orange striped sweater and a cap. But he seemed confident, so you stayed quiet

“What are you?” Ross spoke up.

“A rapper~” Roy responded smugly.

“That’s not scary?” Robert replied.