I ended up taking Black Stripe to the vet's. She's been coughing (sounds like a human with whopping cough, coupled with the sniffles, which I've never seen a cat get before.) She was highly subdued at the vet's, watching the man with her huge eyes. As he worked, I was running an internal dialog of what she was thinking, which tickled him. He gave the shot with a thin needle, and she didn't react to it at all. She was fine while he listened to her heart, lungs and larynex, too. (He did that first, of course...)