First started in construction there was two Pagan outlaw bikers on the crew. Carried a ball peen hammer in a holder mounted to the frame of their Harley’s. Called it a “traffic cop”. Said if a car got too close a window or mirror got smashed.
They scared the hell out of me.
A handfull of 1" ball bearings tossed over your shoulder works wonders on cars tailgating bikes.
Always used old spark plugs from the tuneup man's trashcan out in the shop