When I worked on the railroad in Canada as a traininspector we were riding 500cc ATV quads. We had a box on the back with brakeshoes so we could change them on the freight cars if needed, while inspecting for defects.
Those quads were tempting to fool around with, particularly in winter, "testing" how well they handled big snow drifts.
Also popping wheelies or cornering on two wheels used to get us into troubles with supervisors if caught.