Ok, there is an OTTB that my trainer has that I really like (and he is for sale). I have been watching her working him and working with him a little myself. I did not know if I should put this here or not, but since it does happen during training. Here is the problem, when he is warming up on the lunge or under saddle he passes a lot of gas. I mean he is farting at least once every time he goes around when lunging. He does not seem to have this problem any other time, such as in the stall or in the paddock. Once he is warmed up he is fine, no farts. I don't know if this is really a problem, but it might be if I am riding him in a show and he is doing this in the warm up ring.
Has anyone ever seen or heard this before?