I have not had this done. Frankly, I would have to REALLY know the person/company and trust them. I just can't imagine very many people I know that I could trust. I would have to be there to work WITH them side by side. They might not like that.
I actually was once THAT person who was trading yard work for dog training. Ripped out every bit of the dog trainers Monarda!
Luckily we became friends and now it is a long standing joke. AND I get her a new kind of Monarda every year now for her birthday.