There needs to be a word…

…for the sudden realization that the sleazy rationalization that you came up to not do something with is actually a valid reason.  “Well, I can’t go drop off that check just yet.  It’s almost 9 AM; surely the highway’s going to be in the middle of rush hour traffic.  …No, wait, it actually will be.”

Yeah, that’s pretty much all I have for the night.