High Five

Condition:
When any card functioning as a king, regardless of suit, is played.

Description:
Player must high five the person on their immediate left, regardless of playing direction.

Failure:
"Failure to high five."

Creator:
Archbishop

Trivia:
Many players hate this rule, due to some people possessing excessively sweaty hands, and thus it is not commonly in use, much to the chagrin and disappointment of the rule creator.