Its a sad fact that a percentage of any population will be morally challenged.

Another percentage will be opportunistic. If you had a piece of software and a licence key would you install it on your home kit. How about an illicit MP3, CD or DVD? For those of you who are legitimately outraged and indignant at the aspersion you are in a worrying small minority.

Then there is the behaviour that manifests when a relationship breaks down.

Years back I did a module on employee relations and a story (hopefully an urban legend/myth) was told about a dispute at a steel works. Apparently cyanide is routinely used in some processes and because of the dangers involved flasks of a liquid to counteract the effects of cyanide poisoning were within easy reach.

In the event of cyanide poisoning speed is of the essence so the idea was that the liquid was drunk but the inevitable consequence was that the human body would expel whatever it could by whatever method it could via every pore and orrifice it could. During an acrimonious industrial dispute management learnt to fear the coffee urn, canteen food and the drinking fountain.