If you had a dog walking service with a route that crossed my property without permission, and after some time I asked you not to do so, you might write a blog post trumpeting: "Property owner is shutting me down." But others might disagree.

There may be ways to preserve the viability of your dog walking service. You can enter into an arrangement with me to use my property (which might include a nominal fee), you can take a different route (inconvenient for you and your customers, but not my problem), etc.

If the only way you can run your dog walking service is to take a shortcut across my property without my permission, well, then the world is sending you a message about the viability of your business.

Again, the mere fact that you and your dogs have grown accustomed to crossing my property does not mean I'm "shut[ing] you down." And next time, maybe you should secure written permission before starting a business based on the assumption that you'll have the right to use someone else's property forever without paying.