Spider in the Bathtub
Fred and George
Fred and George didn't want to miss any exciting action, so they too went to see what Ron was yelling about.
They apparated into the bathroom.
"Nice vocal warm-ups," Fred said.
"Spider...in...the...bathtub!" Ron gasped again.
Identical evil grins grew on the twins faces.
"Spider?" George asked innocently yet evilly.
Ron isn't totally thick, so he realised what the twins were thinking and threw them out (don't ask me how).