Ok, I actually caught this while checking on here for other slip ups. The slip up happens when the robbers are invading the backyard of Ralphie and his dear family. As our brave hero Ralphie is fighting the robbers off one gets away. He(robber) turns around gives his great declaration of revenge and then amazingly jumps over the fence onto his horse and gets away. How could a robber have such great agility. Answer:

his trusty appearing disappearing trampoline.

at the start of the fight its not there and when he makes his jump there it is at the bottom of the screen. And then it disappears later on.

As this is my first one hopefully it brought as much joy to you as it did to me when i watched it 12 in a row on Christmas.