[marklwood]

I would like to add to Lonmans explanation. In my experience, the weakest link in a bar situation is all the neon transformers. They are not like most usual electrical equipment in other situations. The transformers in these normally carry 100,000 volts or more and are prone to premature failure. They can fail gracefully or quite spectacularly taking all that is electrically connected (including anyone acting as a ground) with them. While there is not much amperage, it can, and has caused death. This is typical voltage of a taser. While not normally fatal, read the news. How many deaths by taser have we read about lately.