[Xorakios]

When on an extended trip to Delray Beach, Florida and shopping at the Publix market I tried to walk in with a cart that was lurking in a parking space.

An employee somewhat angrily explained to me that I was threatening his job because collecting carts and greeting customers was part of the Publix customer experience.

[MathMonkeyMan]

Publix also advises customers not to tip the kid who unloads the groceries into your car. You will accept our service and you will do nothing more!

[fsckboy]

I once got yelled at by a Safeway employee because I didn't respond to her "have a nice day, sir"

"I SAID, HAVE A NICE DAY SIR!"

(just in case you live in a civilized part of the world, understand: this was in a place where the checker doesn't lift a finger to bag your groceries, that's your job)