A lot of people took the previous poster's post the wrong way (which admitedly was pretty easy to do) and felt that he was talking down about rednecks or hunting or felt deer season was a stupid reason to pass on gaming.
But it got a question rolling in my head.
What reasons have you seen that you felt were unacceptable to cancel a game?
Did Wrath of the Lich King impact your gaming group? The Dark Knight? A marathon of Faulty Towers?