B:  
Bumper: Now, down the hall is our science lab.
Ron: (Hiding himself in the hall way) She won't even know I'm around! Here they come! I'll find a place to hide in the lab. I think I'll duck behind this...oops!
(In front of the door of the science lab) 
Bumper:  After you, Miss Sticker!
Kelly:  Thank you! Science is one of my favorite subjects! I especially like this...rats!
Ron:  Sorry! I accidentally knocked over a cage full of lab rats! Um... just pretend you didn't see me! (Ron runs out.)