That's right. I've devised an Evil Strategy. It's my first ever.
If my father asks why I haven't humored him and sent him the photos he requested although I've already said "no" to him, here's what I'll say:
"Oh! You were serious? It sounded like a joke."
This is not a lie. And it's not a justification. It's showing him how he's coming across. If someone sends you a total of 17 photos as a result of your constant pestering and then says "I don't know what else to send you," it's only logical that your "Send me all you've got" reads as a joke.
I guess I started thinking about Deborah's suggestion that I behave like his own narcissistic mother would, and that caused a paradigm shift in my thinking. Suddenly, the question occurred to me: "Why does it always have to be me on the defensive? Justifying myself? Thinking of ways to prove I'm not being mean? Is it absolutely forbidden to put HIM on the defensive if he deserves it by behaving in a clearly abnormal way? It might actually not be forbidden. Wow."
Am I evil?