@tomw Well, it varies from jurisdiction to jurisdiction, but the cost of human life locally is “criminally” about 15-20 years (life for murder which normally equals to 15-20 before they kick you out, that's basically the max.), “civilly” at about €1000-€10000/head damages.

With these numbers in the back of your head, what are the probabilities of customer death that you must be willing to live with to run a profitable business?