Not quite on board

I just had this exchange with the young man working at the drug store across the street from our business. I brought a Diet Pepsi to the counter:

Cashier: That will be $1.75

(I hand him two dollars)

Cashier: Would you like to buy a Scratch (like lotto) ticket for a dollar?

Me: No thank you.

Cashier: Sorry, they make me ask everyone

It’s a good thing I wasn’t on my way to a gamblers anonymous meeting!