R is for Roxy. She thinks she's a person much of the time.

.k.a. 'the bitch'. She is usually cooperative and is also very bright. Cooperation was not in her modeling vocabulary today. "Sit, Roxy." She did that just fine. As soon as she saw the camera, she closed her eyes. Tight. She kept them closed - except for some peeking when I said "Biscuit? Mmmmmmm." No biscuit, just the camera. Eyes almost squeezed shut this time. There was no more tricking her with fake biscuits, leash rattling or anything else.
A thank you to Chris for the suggestion.