Ugh...My previous horse, a 1300lb mare, spooked in the crossties and jumped on top of my foot. I could hardly walk and it had swollen so bad I couldn't get my foot out of my paddock boot. My trainer had to drive me home. A few weeks later, she spooked and jumped on top of my other foot. Luckily, it only left a small bruise.
Now I'm really anal about enforcing horses to stay out of my personal space. If my gelding even as much as taps the back of my boot with his foot, he backs out of my space very fast before I can even give him a look.