During the part when Gord is "Getting inside the animals" a semi-truck doesn't see him and runs right into him. If you pause it right here, and do some slow-mo, you will see that Gord's right shoe flys off when he gets hit. Obiviously, it wasnt a real person that got hit by the truck, most likely a doll of some sort, but in the next scene when the truck driver gets out to see what happened, his shoe is back on.