Al: Well, today, we're gonna show you the proper way of putting up Christmas lights on your roof. Heidi here's installing a GFI outlet.
Tim: A GFI is a ground fault interrupter. It prevents people from being shocked, something I know an awful lot about.
Al: Now, I've already done the wiring. I brought the conduit in from the attic. Make sure that the lighting strands and the extension cords are heavy-duty UL-approved and marked for outdoor use.
Tim: That prevents electrical fires, something else I know an awful lot about.
Heidi: That's right. And Al and I have taken the ultimate safety precaution.
Al: We're not allowing Tim to do any of the work. [Al & Heidi laugh]