Cashier: That will be $12.48

I give her a $20

Me: Can I have some change (meaning small bills)

Her: I don’t know your change amount yet.

Me: No., I mean, whatever it is can I have some singles?

Her: Of course. I was afraid you were asking me to tell you your change amount before the computer was ready.

Me: I can do that, it’s $7.52.

Her: Now looking at the screen, That’s right! I could never do that in my head

Me: Well, I can pretty easily.

Her: It must be generational.

Me: Yeah, what else could it be?

​