and a box of ceramic tile.
I'd open up all the valves for the propane powered forklifts to rob my enemies of assault vehicles and smash up the batteries for the others. Then I'd climb the shelving units and wait, ready to push pallets of loose lumber and other materials down on the unsuspecting. As numbers dwindle I'd venture down and finish the rest off by hurling ceramic tiles at people like frisbys to wound them and finish them off with the hammer. The respirator mask is a defense tool to mitigate the various chemical weapons available in a home depot such as the spray weapons mentioned above.