1. Removing horseflies from neck/face of horse.
2. Itching down long boots.
4. Back scratching.
5. Protection. Like a sword.
6. To watch other horses gallop off if they get too close.
7. Flick rugs off rug racks when they're too high.
8. Turning light switches on.
9. Tapping on a window to get attention.
10. Oh yeah.. reinforcement of a leg aid ;)