If I have my time again I know what I want to be. I want to make car windscreens. I want a job where the consequences of failure are minimal and customers pay for your mistakes. Today I went out to my shiny new car (not quite as shiny as it used to be - really must wash it) and found an enormous crack in the glass. This has appeared from nowhere, without me doing anything. I'm completely at a loss to explain it. The only thing of which I am absolutely certain is that I did not cause the crack, i.e. it is not my fault. I rang the garage and asked if such things were covered by warranty, since it was obviously faulty.
The chap on the other end snorted and said something along the lines of "Well, it is a windscreen. What do you expect?". When I mentioned that I did not expect it to break of its own accord he then asked if there had been any rioting or other activity outside my house which might result in such damage. I said that I was pretty confident that nothing of that nature had happened, I'm sure I would have noticed rampaging street gangs. As far as he was concerned it was not a matter for the manufacturer (i.e. the person who made the car and windows) but the owner (i.e. the person who bought a new car specifically to avoid having to pay for things that drop off it).
So you can make windscreens as duff as you like and if they break it is not your fault. Never. In fact it gets better, since when the screen breaks the poor sucker with the car has to buy a new one. So you can generate new business simply by turning out screens which self destruct like mine has.
The only good news is that it is covered by insurance, but it still means I have to mess around getting it fixed and stump up an excess. No fair.