Jonas walked into the bathroom and heard someone say what happened here? When Jonas got in,he saw the bathroom was a disaster.
"Peeves," was the first thing that uttered out of his mouth.
"Oy! Peeves! Next time you have a party in here, could you feel a need to invite anyone next time!" Jonas shot out.
He wasn't scared of the poltergeist. Nah. If anything Peeves made him laugh.