[Grah]

this can be used to prevent driveby'ing, if you want to remove that feature, it can also be used for a wide variety of other uses, like checking to see if a person is a driver of a vehicle to make him able to do certain commands, etc.
ex:
you want only the driver of a vehicle to be able to /refuel, so you use this function under your /refuel command and make it return true, then make the passenger return false
^^there are other ways of doing this w/o using this function but this is just a way that you CAN use it.