1.   Examples include anorexia nervosa, personality disorders, and patients with resistant depression.

2.   Examples include factory automation and large on-line financial networks.

3.   Examples include money transfers, phone calls, letters and seemingly casual remarks.

4.   Examples include patients with chronic infections, inflammation, malignancies, and liver disease.

5.   Examples include physics and electronics problems in basic mathematics classes.

6.   Examples included the ownership of large single-family homes, but no income to furnish them whilst keeping garden meticulously in order.

7.   Examples might include the need for strengthened floors for heavy equipment or high ceilings to house special machinery.

8.   Examples would include the provision and maintenance of fences, roads, drains, sewers and private sewage disposal works.

9.   Obvious examples include caffeine and ephedrine, the latter being readily available to the public in over-the-counter cold remedies.