My cats Actually try to steal the oats and pellets from the horses, DRIVES me insane, I go to get some more of other stuff to add into it and I have cats sitting in the bucket EATING the oats and pellets I already added. ITS annnoying, especially since I spend more time shooing away the cats rofl
My cats think they're horses. They also eat the grain, one in particular really likes corn oil, they spend a lot of time in the hay, as well as roll in the mud and dirt right alongside the ponies. Of course, the cats also sleep on my mare's back when she's blanketed. They're all quite close.
OR wait till the horses really think they are dogs and try to eat the dog food. Our horses stayed in the back yard for a while and honey would wait till I was gone after I fed Pete then go over and steal his food. Didnt realize it till I heard pete growling one day, he was sitting IN his bowl and Honey was trying to push him out! It was crazy stuff I was like OMG!