[sanddrag]

I think 4 carrying the robot is more dangerous. It offers less control because it is an over constraint on the motion. There is much more likelihood of people applying their forces in competing vectors. Also, there is more uncertainty in where the robot is going because now 4 people get to argue over it instead of two people agreeing on it. Also, it is more space consuming when walking though isles or passageways.

Gloves can be quite dangerous too. They are much more prone to getting pulled into a gearbox or chain drive pulling the whole hand in. Also, wearing gloves offers less control over operating tools.