(I am scanning a large birthday cake for an adult couple.)

Me: “Oh! Is it someone’s birthday today?”

Wife: “Yes! It’s our daughter’s tenth birthday today.”

Me: “Oh, that’s cool. My birthday’s not too far away either!”

Wife: “Really? How old will you be?”

Me: “Seventeen.”

Wife, to husband: “Oh, that was a good year. Do you remember what you did on your seventeenth birthday?”

Husband: “I don’t know. I drank seventeen beers!”

Wife: *laughs* “I’m pretty sure that my seventeenth birthday was the first day I did shrooms. But you look like a lot better kid than we were. I’m sure you won’t do any of that stuff,
right?”

Me: *pause* “That’s going to be $17.43, please.”