This Christmas Vacation t-shirt shows the Griswold house covered in lit Christmas lights, all 250 strands composed of 100 lights each. When Aunt Bethany saw the house, she asked "Is your house on fire, Clark?" Aunt Bethany spent her 80th Christmas at the Griswold house. Everyone quickly realized that Bethany had become senile. She wrapped her cat up as a present, and wrapped another with lime Jell-O. When Bethany arrived at Clark Griswold's house, first she asked if she was at the airport, then asked if the house was on fire. You'll have everybody asking you to say grace when you wear this Is Your House On Fire Clark Christmas Vacation T-Shirt!