The fear felt by Warren is a blunt revelation bringing back rational thinking, and from it you gain an understanding that this is more than just a silly costume; this is for you reality.
Horror at seeing how your human body is conforming, changing greatly, and by all that is holy to you comes the understanding this might be permanent!
An antidote, the place where you got the potion must, you hope, have something to reverse the affects.
Forgetting your not properly clothed according to society, you dash out into public view, running with a greater fleet footed mastery than anytime in your short life.
Deep gulping breaths of air and the passion for running as fast as your hooves can help you to move, seems to add to the strange sensations you feel.
An hour of running flat out, moving without caution or worry of self and or your health, covering the distance you plow through the front door of a small shop, gasping for each breath, and trying to communicate with the shop owner of your needs.
Panting like a dog in hot weather, your body is hot and very wet with sweat literally dripping off tips of fur that covers your body, lighting to the floor, making a damp puddle of stench.
The shop owner looks at you seemingly perturbed by your returning.
"Looking for some sort of antidote, no doubt, well there is not anything to stop of curb what you have chosen! You might have only allowed the potion to work and make a fine of figure, and somewhat horny male Satyr. Instead, your fear, and physical exertion has equated the potion into every fiber of your body.
So then, from your haste and fear shall come a special blessing that few have known, but once this culminates, I shall be the owner of another fine big breeder buck goat!" So chides the shop owner, he smiling at you; and you catching a second breath, stands up leaning on a old wooden barrel. The potion is flowing to every cell, making changes, and assuredly working to make what you are as something solid like a mountain of unchangeable rock.