A fall arrest anchor trolley for arresting the fall of a user. Certain portions of the tests may exhibit an indication of anomalous behavior, defects, errors or events that may have occurred during testing. With this, liquid, and eventually pressurised gas, will flow out of the pipe section via a short drain pipe through the cutting tool, so as to create a gas filled pipe volume comprising the relevant cutting depth in the pipe section. Many forms of the connector are possible, but all are narrow enough to fit between two supported members laid side-by-side, all are attached to the supported members by fasteners, and all are driven directly into the supporting members. The multi-surface anti-bacterial protective device includes a multi-layered material capable of being rolled up and also being capable of being severed into multi-layered pieces of material and also being adapted to fastenably cover a surface such as a light switch plate and a door knob; and also includes an anti-bacterial solution being disposed in the multi-layered material.