This... I know several, and most of them are at least a little "off." My dad has had mini horses for years, at times he's had 10 or more. Lot's of work. The mini's can't be ridden by adults (I think around 75 pound weight limit) but they do great pulling carts, etc... My dad hitched 8 of them for parades! He's actually backing off and doing 6 these days. My neighbor has 3 big horses (rescues) and is using them for equine therapy, riding is good for people with various disabilities, such as my son with cerebral palsy. From what I've seen, a big part of their temperment has to do with how they are trained, in addition to their breeding. I highly recommend getting with someone with years of experience taking care of horses to help you along, not just in getting started, but over the next couple of years, as you WILL need help!