In England, tradition dictates that foxhunting horses be turned out in the spring and brought in during late summer, when they are summarily trotted on tarred roads in a process known as "legging up" in preparation for the season to begin in the fall. Ouch.

In Amish communities, retrofitted Standardbreds trot for miles each day, barely missing a beat. When they do miss a beat, or two, or three, you might find them in the local horse auction the following week. Ouch.