Arc Celestial
I'm sure you've just made up that term; grandfather rule? rofl
A Grandfather rule is also known as a grandfather clause is an exception that allows an old rule to continue to apply to some existing situations, when a new rule will apply to all future situations. It is often used as a verb: to grandfather means to grant such an exemption. Frequently, the exemption is limited; it may extend for a set period of time, or it may be lost once a change is made. For example, a "grandfathered power plant" might be exempt from new, more restrictive pollution laws, which would be applied if the plant were expanded. Often, such a provision is used as a compromise, to effect new rules without upsetting a well-established logistical or political situation. This extends the idea of a rule not being retroactively applied.
The term originated in late-19th-century legislation and constitutional amendments passed by a number of U.S. Southern states which created new restrictions on voting, but exempted those whose ancestors (grandfathers) had the right to vote before the Civil War. The existence of slaves prior to the Civil War effectively excluded African Americans while allowing poor and illiterate whites to vote. Although the original grandfather clauses were ruled unconstitutional by the Supreme Court in 1915, the terms grandfather clause and grandfather remain in use.
Nuke was around before the demand for Armbar! So he's allowed to get away without using the Armbar, you however are not. See how that works?
rofl