I used to help out in a lesson barn to pay my lesson fees. My duties included - catching horses in the pasture, letting them out in the morning, watering and feeding them hay, mucking out, grooming and tacking up the horses in time for the lessons, helping out with leading horses in kiddie trail rides, cleaning the tack, and many other small jobs that I was asked to do. Gradually I was allowed to shadow instructors in order to become an instructor's apprentice and was sometimes given a horse to warm up or cool down before a trainer started to train it. It was hard job, but I loved it.
I have come a long way, to surrender my shadow to the shadow of my horse.