I do all kinds of things with my OTTB (as show below), he's currently 14. And has bad hocks from his racing days so I've had to recently retire him from jumping =/. He still has his "hot headed" moments but as you can see he's calm as a butterfly when I want someone to ride him, like me doubt with a 3 yr/old and 2 little twin girls (they were 2 at the time) riding double on him. Thankfully he's pretty much spook free. I got lucky with my boy, he's level headed 95% of the time. (just don't get him near cows!)
Sorry for all the photos. I had to share!