... when your internal monologue goes something like this:
ETA: folks, I appreciate that you're trying to help with the comments, but you're not -- you're making an extremely difficult and painful decision much worse. I've been studying this question at *least* as long as any of you, I understand it quite deeply from all sides, and quite frankly, you're not in my shoes and don't understand the sheer number of issues I'm juggling here. Please stop.
"A-ha! Yes, that looks like the right solution to the problem."
(Smug.) "Oh, I like that -- it's pretty innovative, and I think it's even a good user workflow."
(Dismay.) "Oh, crap -- that means I probably have to write an effing patent..."