Identity Crisis On The Dog Food Aisle

(I frequent a store that sells pet food and farm supplies. Because I have only one dog, I buy food less than once a month. My family members are also customers occasionally, but much less often than I am. I lug my $40 bag of dog food to the counter.)

Cashier: “Your mom was just here!”

Me: *confusedly because my mom works much later than me and lives in a different state* “Really?”

Cashier: “Yeah! Why didn’t you have her buy your dog food?”

Me: “Well, we don’t live together.”

Cashier: “Okay! Your total is $40.”

Me: “Okay. Wait, don’t you need my phone number for the rewards program?”

Cashier: “I already put the number in!”

Me: *even more confusedly because they never remember my number* “Okay.”

Cashier: “You know what, I mistook you for someone else.”

(I took my $40 bag of food, sans rewards for all the cash I had just dropped, and left the store.)