Some people are simply impossible for me to fathom. I know I'm not the master of social interaction, but c'mon. What exactly is the cost of simply saying what one means?
The argument is that it's a private affair and the interactee, if that's a word, will just have to take it at that. I have a better idea. Extend the basic courtesy of conversation, consider me your intellectual inferior if that's what it takes, and speak your mind. No point compounding attitude with cryptic omission and, by extension, dishonesty. It's emotional laziness, too.
Well, that's my gripe, I guess. Pah.