Grinder gets taken away, mechanic cannot properly maintain tools such as chisel, has to use chisel on a job, head on chisel is all mushroomed, piece of mushroom breaks off striking mechanic in arm, causing injury. Of course this is mechanics fault for using poorly maintained or unsafe tool. Tool could have been maintained but grinder was taken away, because once in a faraway place, long ago grinder was not maintained, so all grinders must be taken away. Sounds like circular logic to me, if drivers have to "pre-trip" vehicles, why don't shops maintain tools and equipment. It wasn't the grinder's fault that in someplace faraway, long ago someone that didn't maintain the grinder used an unsafe grinder, instead of repaining it before using it. Makes sense to me.
Someone long ago and faraway once got hurt on a ladder, so by this logic all ladders should be thrown out.