Hey, I am currently working on a project. It is time for my Pyr mix to have a job, and we are going to train her to pull carts. However, I was wondering if I could use an old leather horse halter as a harness. I tried it on her and it seemed to work just fine. The darn thing broke months ago and has just been laying around so I'd like to repurpose it. Has anybody used a halter as a harness?