I won't let a horse go on trial.
I was selling a green broke 4 year old mare for a very decent price because I had to move and couldnt afford to ship her. The move was very unexpected and i didnt have a lot of time. A woman came out with her friend and they both rode her. After riding, the asked if she could take her on trial. I said no. She told me that if she could take her on trial, she would write me a check for half the selling price right then and there.
I said no.
Why? Because my mare was green broke, and although the woman seemed to have her act together, I didn't have a month to dance around the "ifs, ands or buts" of a trial. On top of that, there's no saying what training, or lack there of, she would receive. The last thing I wanted was for her to leave and they decide they don't want her after a month because they taught her how to buck or rear.
Then I'd have to fix these problems before trying to resell her again.
So no, I won't do a trial. If you like the horse, you are encouraged to vet it and ride it, but you won't take it from me without a bill of sale.
For the record, I sold her at full price a couple days later to a hunter/jumper facility and shes turned into quite the athlete. I'm proud.