I am glad I am not the only one who is offended by this prevalent & increasing rudeness.
Here' my most recent story.
I was in Southampton in the Health Food Store. A man infront of me had bought soup. He paid in cash, got his change and asked for a spoon.
The cashier handed him a spoon and he said, "Are your hands clean?"
She looked puzzled and he continued, "Have you washed your hands?"
She answered, "Yes..."
I'm thinking he's just handled US currency and he's worried about his spoon...