not sure what it's called but the one that just kills me (sometimes it's funny, sometimes embarassing) is when, en-route from my ear to my brain, a sentence gets words replaced. Happens all the time... "Hey, while you're out, can you pick me up a pan of Coke, please?" is, as it turns out, '...can you pick me up a pack of smokes, please', and so on. I'd swear that at one point a friends grandmother asked me to take her into the attic and do her from behind and let me tell you, that's not something I ever want to think about ag... and I just did. Crap.
Anyhow... not sure what that's called but it drives me batty. Not making it up or trying to be funny for no real reason (just occurred that y'might think I was making light of the thread, so..)