The effectiveness of this approach aside, how golly-damned frightening would it be to have a self-gratification session interrupted by your mother’s announcement that the apples of your porno-watching eyes are standing naked at the door, fully aware of your web-viewing habits?
If nothing else, it would likely frighten anyone into burying their horniness so that deeper conversations could take place.
As seen in the ad above, the two “porn stars” (who totally look like they should be WWE superstars) show up at this particular household because they know that there’s a pubescent boy in the house who just looked them up online, and they want to warn the mother about it.