Ravenclaw: Hey, did Gryffindor and Slytherin fight again?

Hufflepuff: I wouldn't be surprised if they did but what happened?

Ravenclaw: Well, Gryffindor asked me for a cup of water, but then Slytherin said that (s)he was gonna get it for him/her. Then, Slytherin filled the glass with ice cubes, handed it over to Gryffindor, and said "Wait for it."

Hufflepuff: What's wrong with them??

Ravenclaw: *shrugs