They started dragging the deer by the hind legs to get it back to their pickup truck.
An experienced hunter saw them and said "No, girls, you're doing it wrong. You're dragging against the grain of the deer's hair. If you drag by the antlers, you'll be pulling with the grain of the hair, and it will be much easier".
So, the two blondes started dragging their deer by the antlers. After about 20 minutes, one said to the other "You know, that old guy was right! It's so much easier to drag the deer by the antlers, it's like it's just gliding along the ground".
"Yeah, he was," said the other blonde.
Spoiler:
