All-knowing hobo

One of the poor inhabitants of the Slums. He can be found south from the Don's lair, near the large rock (he would be to the left from it).

When approached, he demands something to eat. He can accept any of the following:
 * Apple
 * Big Fish
 * Fish
 * Seaweed
 * Small Fish
 * He wouldn't accept the Weird Fish, despite the option to give it being available; even he's not that hungry!

Once provided with food, he always says some random tip. Known advices include:
 * Apple trees in the Forest Park, and what they can occasionally produce the rare Golden Apples.
 * The secret phrase you need to tell to the Devil's Drink's owner to "make some money". Hearing it at least once is mandatory to unlock the underground arena.
 * Where to buy fake UNA passes. Hearing it at least once unlocks access to them on the Black Market.
 * Secret meadow in the forest, and its relation to the Fairy Dust.
 * The Bathhouse's special services.

He only says one tip per day (he would repeat the last tip he said when approached), so in order to hear something else you need to rest first (fortunately, you can do so in the same location).