Is there a word for this?
3 o'clock, February 7, 2005
You’d think somebody would have coined one, if not the Greeks or Romans then some classics-obsessed European educator of the 19th century: “the sin of confusing what you said with what you might have meant to say if you had known in advance that you were going to get in trouble.” It happens a lot, and there should be a word for it.
(Phenomenon itself identified by Nick Mamatas.)
It's probably German. Any culture with words like angst and schadenfreude almost certainly has this sort of thing in their vocabulary.