When i was new in recovery rude sales people would set me off and i would cause a scene. I made some doozies like yelling in a cell phone place about their lousy service. It got so i couldn't take a bus without arguing with the driver.

I learned to tell myself that if i could just keep it together and get my business over with i could walk away and forget about it five minutes later. If i made a scene i would spend hours being upset. It worked well and i haven't made a scene with sales people in years.