10. Blowing Paper:
"At any moment it could whip up into our faces, covering our noses. We could suffocate. And don't try to tell us you'd do CPR."

9. Barking Dogs:
"What? You've never read Steven King's CUJO?"

8. Puddles of Water:
"Quicksand."

7. Trash Cans:
"They've been known to swallow horses and transport them into another dimension."

6. Babies and Li'l Kids:
"Long lost tribe of horse-eating pygmies."

5. Plaid Horse Blankets:
"Hey, when was the last time you wore plaid? It adds 100 lbs."

4. Ropes and Hoses on the Ground:
"Dreaded North American Trail Snakes."

3. Ponies:
"Cute, cleaver, hardy. They want to take over the world."

2. Windy Days:
"Two Words: impending tornado."

1. Carts and Wagons:
"Look. You put a human on our backs, we can always buck them off. But hitching a horse to a wheeled object? It's just not right."