“It's rusty too,” intones the Dungeonmaster, “and pieces of it keep breaking off. Look, you're not supposed to be farming. You're supposed to go into the forest and find the dark elves. I don't have anything else about the farmers. The elves are the adventure.” Reluctantly, I give up my agricultural rescue plan and we go into the forest to hack at elves.

I got a very similar response when my Lawful Neutral Cleric wanted to set up a formal inquisition to root out the evil cultists in the city rather than go to the big bad's cave and whack them on the head. Also a barbarian of mine wanted to run a brothel after the party defeated the gang that controlled it before. It mysteriously burned down the following night.

In general some DMs have a hard time dealing with characters that want to weave baskets instead of going hack and slash.