(True story related by a pharmacy cashier)
One afternoon, while I was working at the drug counter, a woman came in and dropped off 3 prescriptions to be filled. Later, she came back, and wanted to pick up the prescriptions (they were for her husband). Two of the prescriptions were ready, with the third stapled to the bag. The pharmacist had already told me about this one.
"Here you go, we were only able to fill two of the prescriptions," I said.
"Why can't you fill the other one?" she said.
"I'm sorry, we don't carry that one," I said.
"Well, can you order it?"
"No."
"Well where can I get it filled?"
"I'm afraid you will have to go to the hospital to get it filled."
"Why? What's it for?"
"A chest X-ray."
Chuckle