Dwennon tells you, "You've seen them lingering around town, haven't you? They've been here all along, you know that, don't you? They have spies all over the place. They see and hear everything. They must be stopped, and stopped the only way we know how. Simply killing them isn't good enough, we need to tip them and tip them often. Go, go tip the cows, they must be stopped!"
Dwennon tells you, "You should return to the field. I've never met a more formidable tipper. You shall be a hero of the people when the Cow Inusrgence is stopped!"