This Christmas Vacation t-shirt features an image of Clark Griswold wearing a Santa Claus hat. The shirt reads This Is A Full-Blown, Four-Alarm Holiday Emergency! In Christmas Vacation, a Christmas tree burned, a cat died, and cousin Eddie emptied his RV's chemical toilet into a sewer. Guests staying at the Griswold house had had enough and were ready to leave. Clark told them that nobody was leaving because they were all in it together and this was a full-blown, four-alarm holiday emergency!