O.k. I have a question for you all, to get opinions. I went riding Wednesday night on a 3 yr old Quarter horse. He has grown quite a bit and we have measured him at 16 hands tall. He is quite lanky and good natured. The problem is that he tripped with me 5 times tonight within an hour. 3 times at a lope down to his knees, 1 time down to his knees on a walk and one time a stumble. All of these times were recovered but left me wondering not if, but when I would be tasting dirt! This all happened in a outside arena with nice footing. He is not lame and has never been. I rode his dam all her life and still have her. She is 27. His sire has sired nice riding horses. He's not quite paying attention all the time as he is quite herd bound. I just can't remember ever riding a horse that has stumbled so much. Has anyone else had this happen and what type of reasons did this occur with you? I really like this horse and want to give him a chance but it's not worth getting seriously hurt either.