A tale of woe, including carelessness, stupidity and laziness....

[tony duell]

> 
> The engineer said that it wasn't a problem because the highest voltage
> on the backplane is 5V. The manager pointed out that the power supply
> was rated for 600A, and undoubtedly could source more than that
> briefly, and to think about what would happen to your finger if you
> had hundreds of amps flowing through the ring.

I have heard similar warnings about working on cars while wearing 
rings, or worse a wristwatch with a metal strap. A car battery can provide
many hundreds of amps for a short period.

-tony