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Incident 2: (you'll need to look up an N2 laser to get the jist enough for this to make sense)...Power supply turned off and disconnected from the laser unit on the hot (+) side, my project mentor was inspecting the return (-) side's connection. I was adjusting the spark gap again to optimize timing. Mind you this was on a fold out table with a metal frame. Owing to the nature of the laser itself (its metal plate capacitors retaining a charge), I guess I was grounded to the table frame with my foot against it. My mentor was doing his thing and I suspect his belt buckle either made contact with (or got close enough to) the table frame. Considering it was holding some small charge at a voltage of 10-15KV I would not be surprised if it leapt some. Either way we both got a nice hard ZAP out of it.