Hinnak is a farmer living in the North outskirts of Hurnscald. He is annoyed by the Pinkies, he hates them because they jump in his fields destroying all his harvest. However Hinnak is too slow to catch them. If you volunteer to assist in keeping down the pinkie population, he will just need 10 Pink Antennae as a proof you've killed 10 Pinkies or more. This is the Farmer's Scythe Quest.
Apart from his strong aversion to Pinkies, Hinnak can have his more lucid moments, and teach you a very useful spell. You will need to offer him a drink (he is partial to Beer) and then ask him what was the weird word he heard after his little story, he'll then give you the spell.
Spell taught by Hinnak:
You can find the script here.