Fails, well, DH and I agreed to let the neighbor across the street and his buddy with a tractor, use some of our field for a 30'x40' garden one year. The guy across the street got a cancer diagnosis right after tilling, so we decided to help. Planted corn, tomatoes, peppers, runner beans, summer squash, cabbage, spinach, and bush beans. Broke our backs. After we planted everything, guy with the tractor showed up one day with a buddy, left the gate to the horse pasture open and was bragging to his buddy about his garden. He got chewed out for not closing the gate behind him and apparently his feelings were hurt. If you've ever tried to chase down horses that got loose on a main road, you know he got off easy. He never came back. So we continued to break our backs. Neighbor across the street's wife never even came over to pick when crops were ready. I picked a huge mess of runner beans, cause I heard her say they were her favorites, and brought them to her because her husband couldn't. She gave me a lecture about how I should have picked some for the guy with the tractor.

Lots went to waste because it was a full time job for retired guys, which is what they were.
Needless to say, not opening our land up for neighbors anymore. Lesson learned.