How do you get a pot of grease by putting your horse in the box on howrse?

You can't get a pot of grease by putting your horse in the box on Howrse. That's not a feature of the game.

It sounds like you might be thinking about a different aspect of the game or a misunderstanding. Can you clarify what you mean by "putting your horse in the box"? Maybe you're referring to something else like:

* The Training Box: This is where you train your horse's skills. You won't get grease from training.

* The Breeding Box: This is where you breed your horses. You won't get grease from breeding either.

* The Stable: This is where you manage your horses. There's no way to get grease here.

Please tell me more about what you are trying to do in Howrse so I can help you understand!