The Vat Of Acid Episode

I sell body care products. Our new line has hyaluronic acid in it for extra moisture. A woman comes in and is totally flabbergasted.

Customer: “It has acid in it?! That’s not going to hydrate your skin; acid melts it!”

She doesn’t grasp the concept that not all acids are corrosive and won’t believe me.

Me: “Do you know what deoxyribonucleic acid is?”

She was stunned to learn that DNA is made up of acids. She still didn’t buy the lotion.