My husband and I had this happen to us in a Costco Food Court a few weeks ago. This is how the exchange with the guy at the food counter went:
Hubby: Hi, we would like a slice of pizza, a soda and a yogurt.
Guy: Okay, so I have a pizza slice, churro and soda. That will be (price).
Hubby: No churro, just a pizza slice, soda and yogurt.
Guy: Okay, so a pizza slice, soda, yogurt and churro.
Hubby: We don't want a churro.
Guy: Okay, so a pizza slice, soda and a churro.
Hubby: No churro! Just a pizza slice, soda and yogurt.
Guy: Okay, I have four items.
Hubby: No! Three items! Pizza slice, soda and a yogurt!
Guy: Oh! Okay!
Meanwhile the guy behind us is cracking up because this guy is beyond ridiculous. We eventually got our order, but we were trying to figure out if Costco was trying to get rid of their churro's.