While you electricians are debating pros and cons of various methods, us programmers are getting zapped every time we reset the robot for autonomous!
Who would have thought we're just building a portable Van de Graaff generator?
We have an electrician/parent/mentor and he isn't too sure about the ground chain attached to the robot frame, as it's just dragging on the plastic floor, but he thinks it may be enough as it's grounded by the carpet under it. I'm thinking it's better than nothing, but what do I know?
I do like the lighting rod idea. I'm sure the inspectors wouldn't mind several air terminals -- aka nails -- sticking up on top of the robot!
"It's only there for safety, sir!"