As I have said in another thread there is a way to control them and I thought I'll share my strategy with everyone.
The little people only buy the items you have most and second most or not at all in your storage. They never ask for metals. they offer low prices but that is relative.
Ok. You can easily keep at least one of each item in every storage and they will never ask for it again.
You keep easy to produce or very cheap to buy products on high levels, like eggs and bread, wheat and corn respectively.
From here onwards it is just mathematics to keep production running and control their demand. If you are in danger to fall low with the product you have at highest level, play with the item you want to have at third level and you dont mind selling cheaply if worst comes to the worst.
Make sure you dont pile up what you do not which to sell to them... Can be tricky task when saving for boat orders. But hey, then just send Greg away this one time :)
Selling to them gives 5 xp, so that is a nice bonus.

