Although somewhat discretionary, voiding automatically applies if you call Shotgun while indoors, or if you do not have your shoes on and call Shotgun, or if you display any other blatant disregard for Shotgun protocol. In circumstances of minor Shotgun rules infractions, voiding may not need to be exercised. Being void only applies for the ride directly after the voiding has occurred and after that ride you may regain full Shotgun privileges. A common application of this procedure takes place after two people call Shotgun at the same time. Because Shotgun is a living entity and constantly changing, new rules always need to be created.
Any group of people is welcome to implement their own rule if the situation arises.
A new rule will often be created following a major discrepancy. The important rule regarding this however, is that the new rule does not take effect until the next car ride. Although the Shotgun rules have been created with ultimate fairness in mind, there are situations where exceptions need to be implemented. The Opposite Sex This is the most important exception. If a girl is included in the group of male automobile passengers and she is the girlfriend or potential girlfriend of the driver, then she gets automatic Shotgun privileges.