Just a habit i have always done, i only say, 'everything same as last time ok?' So for like 3 seconds in a text i avoid any hassle ever, like i say a few times i have had the odd, 'oh today can not two times' or ' i really need extra 500, can do?' but yeah it's very small % i just like to be sure no BS happens.
I always have a few regs on the go so if i get bs like that i just say, can not, same last time or not come, 99% they always come. Apart from one chick i did give extra money ONCE but only cus she named her kid after me