Independently-owned farms aren't slave factories. Sometimes you'll be doing consecutive months of 13hrs/day labour, sometimes you'll have 75% of the day free, every day, for a few weeks. Guess what those with a low budget and an engineer's mind tend to get up to in their free time.

"Independently-owned farms" are the exception, these days, not the people. Every single one I've ever seen has at least one guy on there that performs miracles with PVC pipe, a TIG welder and spare bits of iron.