I'm not sure exactly where this ought to go, as it ALMOST happened, but didn't quite.
My Mom went to the local grocery store to get some prescriptions filled. She thought she had her MediCare card with the prescriptions. It turned out that that card had expired. She did have the new card with her, but could not find it immediately. There was no line--nobody waiting. Now we all know that no line does not mean not busy. Apparently she felt that the pharmacy tech pulled an attitude with her, and ALMOST told him, "Go take a crap and come back to me when you're not so full of shit."
Thank goodness she doesn't speak her mind without editing first! And she impressed this (non)habit into all of her kids!
She did decide to take her scripts to a different pharmacy, though. I'll put what happened there in a different thread.