Back when, a group consisting of 10 local men would meet at a local restaurant for breakfast each Saturday morning. When they finished and were ready to depart, they divided the bill based upon what each earned.
Since one of the members made a good deal of money, he ended up paying most of the bill.
This process of meeting for breakfast became a regular event and had gone on for several years until one Saturday the gentleman who was paying for most of the bill suggested they might want to alter the bill allocation process since he felt it was unfair in that most in attendance were dining at his expense.
After some discussion, those benefiting from the process elected to retain the current means of dividing the bill.
The next Saturday only nine members were present and the fellow that made a good deal of money was absent. He elected to spend his time and money elsewhere.
Those who benefit at another's expense should keep this in mind, since this could happen to them as well.