They will wait until you will not serve them The Products They want. There's no any Time limit, they will not angry, nothing.
However You are unable and doesnt want them to stand in your farm for decades, Just Say them "No, sorry" and they will return to their Farms, but Come again after certain Days for help. Better not to Do anything and Once you have their Desired Products, give them and say bye bye. Both Will happy:)
Greg is waiting in my Farm since last 3 days for Brown sugar.
Will give them his 2 brown packet of sugars Today
(If my school hw completes)

