Thanks to both of you for the quick and on-point responses. This is all along the lines of what I was already suspecting, and it's good to know I'm at least barking up the right tree.

As for HAD, I can't possibly allow myself to contract it. I'm already getting an RAD itch, and between that and my rampant NAD (Nikon Acquisition Disorder) I can't even afford the space, let alone the cost to start collecting hones.