I would never tell on anyone for trespassing on public land or anywhere else if they are not destroying any crops or doing damage. I feel live and let live. I ride in parks, green belts, walking paths, keep a dust pan on my horse and clean off his poop and other then tracks try to show no sign of my passing. I don't appreciate people/joggers yelling at me or telling me I shouldn't be there and I in turn show respect for them . Dirtbikes, 4 wheelers, mountain bikers if they show me courtesy I will return the same courtesy.
We are all enjoying the same outdoors.
If my horse can't handle these people he will learn in short order to handle anything that comes along, and I mean anything.