After leaving the saloon's cellar, you were given the milk you order by the bartender, while at the same time paying him for the drink you ordered, and leaving the saloon. However before getting on your horse, and riding off to the next town, you begin to think about what the bartender had said about Hoof Hollow.
With the people of the wild west being transformed into centaurs after entering that town, you knew that the human race was going to dwindle at a decreasing rate. You didn't know anything about centaurs, other than what they look like, so you were gonna have to catch one of them to gather more information about them to save the humans. So, before leaving town you went to the town general store, and purchased oats, apples, carrots, and a large net for a centaur trap, but you also needed protection.