That's not really how it works. No one has the right to pull more water from a river than exists in the river. You have a seniority system where the most senio

That's not really how it works. No one has the right to pull more water from a river than exists in the river. You have a seniority system where the most senior gets to use as much water as they need, and then the second most senior does, and then so on. At a certain point the water runs out no one gets water at that point.