Why Do Any Of Us Say Anything?

Me: “Okay, that’ll be $5.50, please.”

Customer #1: *handing me a $5* “That’s it. I don’t have the fifty cents.”

(She clearly expects me to be okay with not getting the change. Having never encountered this situation before, I freeze for a moment as my mind tries to come up with a coherent response.)

Customer #1: *suddenly looking embarrassed* “Wait a minute! Why did I say that!? Here!”

(She hands me a $1 bill, and we both laugh as I give her change back, and we wish each other a good day as she leaves. I ring up the next customer, who also pays in cash.)

Me: *handing him his change* “If you’ll sign right here please… Wait, why did I say that!?”