Mordecai: Looks like he's at it again. Rigby: Ugh... Why does he waste his time? Mordecai: You've been building your water slide for six weeks. Rigby: You're never gonna ride it, man. Muscle Man: (Shakes his head) Dudes, dudes. Let me get real for a second. This slide is my life's work. It's gotta be perfect. Rigby: Dude, dude, we dare you to ride it right now. Mordecai: Dude, its totally sturdy. Muscle Man: Yeah, but- Rigby: BOOOOOOOOOO!!! Muscle Man: What? You think just cause you're yelling "Boo" I'm gonna ignore- Mordecai & Rigby: Booooo! Muscle Man: (Runs) Fine! I'll do it! Rigby: Yeah! Rigby: Email.