2 Ply Toilet Paper

Condition:
Whenever any card with a functioning value that is two less or two more than the functioning value of the previously played card is played.

Description:
Player must calculate the product of the card they are currently playing and the card they are playing on top of, and state it.

Failure:
"Failure to 2 ply toilet paper."

Creator:
Archbishop

Trivia:
Possibly the most stupidly named rule in this entire game.