I don't think anyone's ever seen this movie, but it's really a hidden gem...
My mom took us to see that when we were little kids. She made it to the point where they poured the beer out of the dog bowl before she made us leave because she said it was too stupid of a movie to watch.
/I one the other hand own it on DVD and consider it one of the best movies ever.
Clark W. Griswald
YouTube - National Lampoon's Vacation - Dog Tied To Bumper
This one in my mind is already a Holiday Comedy Classic: