The way I test the rationality of the people around me is by lying to them, generally about irrelevant things, and seeing if they can unravel the lies.

I don't believe you.

I have friends like this, who don't know how to open their mouths or set hands to keyboard without trolling. (I mean, I can't open my mouth without trolling, but I try to be slightly aware of and useful with it.) They tend to exercise it a lot on my LiveJournal. I blocked one from a non-LJ blog of mine for doing the same sort of thing there, where it was just the wrong place. But on LJ - or my own, at least - it's somewhat tolerable because it's the right sort of social space, sort of. YMMV.

Me neither. Are the people around you really paying so much attention to you that they would go such effort? Ones who aren't related to you?