Suppose that after you visit your doctor for a physical examination, he informs you that you are suffering from the following ailments:
- A stiff knee, which requires six months of physical therapy.
- Being overweight, which requires a big change in diet.
- Kidney problems, which require you to give up drinking.
- A growing malignant tumor on your stomach that can be removed by surgery.
The doctor recommends that you give priority to ailment 4, but you instead decide to give priority to the first three ailments.
