An episode of Billy and Mandy?

I saw this funniest scene from Billy and Mandy and I wanted to know what episode it was from. Billy and Grim go to Mandy's house and she warns them to not touch anything cause everytime they do something breaks. It goes to a flashback and Billy looks a lamp with a crooked shade and says, "Hey Mandy your lampshade is crooked" He fixes it and there's a pause then her couch just randomly breaks in half. I thought it was the funniest thing in the world and it had me and my friend on the ground in tears. So if someone could tell me that episode that'd be great. Or if someone even had that episode they could give me would be better.