Sure, goats are susceptible to mange. Mange is often caused by mites and can lead to various skin problems for the goats. Poor living conditions or weakened immune systems can increase the risk.
Maybe the mountain goats in the story are not ordinary ones. They could be possessed by some evil spirits, which makes them act in a very creepy way, like attacking hikers without any warning.
Corn Flakes were created by accident. Dr. John Harvey Kellogg was trying to develop a diet for his patients at a sanitarium. He accidentally left some cooked wheat out, and it went stale. When he rolled it out, it formed flakes. Later, he applied the same process to corn and thus Corn Flakes were born.
Well, 'The Corn is Green' is purely fictional. It was created by the author's imagination rather than being drawn from actual happenings. The plot and characters are crafted for entertainment and storytelling purposes.
Yes, it's possible for humans to get mange from goats. Mange is a skin condition that can be transmitted between animals and humans if there's close contact.
The horse and the two goats are symbols. The horse represents the Western idea of value, perhaps something grand and antique. The two goats, on the other hand, represent the simple rural value of the villager. They are his livelihood and his small but important possessions.