Mirrors

Patrick> I invented something! It's a stick you can draw or write stuff with.
SpongBob> That's a pencil, Patrick. It's already been invented.
Patrick> This time I really have something. A glass ball that lights up so you can see in the dark.
SpongBob> That's a light bulb, Patrick It's already been invented.
Patrick> This is a good one! I've invented a parallel dimension.
SpongeBob> That's a mirror, Patrick It's already been invented.
Patrick> Someone keeps stealing my ideas!
SponeBob> (In mirror, speaking with German accent) Well, I thought it was a good idea.