You know when you take a taxi you go to pay but i you want your cash back ther are two 
ways to do that. 1:just injoy the ride and when you get to your place start shooting in 
the air with L1. 2:befor your get in the taxi get a gun out push x when you get in when 
you get ther shoot the glass kill him in the car pull him out walk away when you are pulling 
so you don't get in the car you will se your mouny on the ground and some times you will 
get more then you payed for.