[asid61]

I can see a robot being on the floor of the pit, but I definitely agree that robots should not be driven in the pit at all. Disconnecting motors would be the safest way to test IMO if the robot has to be on the floor and enabled.

EDIT: I can see "safety culture" being a good thing, but it should be taken as a given that although not everyone will follow the rules, most will if there is a rule and it's at least mildly enforced, especially by people with authority like safety inspectors. But there will always be exceptions. Without a rule it makes it a lot easier to justify doing unsafe things.
Promote safety culture but don't expect everybody to just be safe all the time with no penalties. It's naive to expect everybody to follow something ethereal like that.