Those things getting shredded is almost like watching Lions shredding a prey. My question is will it work on my ex? She’d probably break that machine with her cold hard forged heart though. He should be wearing safety glasses. You can even see chips flying out of the machine. My favorites is plastic toys & fans - it is so cool to see them snap - crack & pop around when that machine eats them really cool. I am of the opinion that the folks that are around these machine don't know the difference between a crusher and a shredder. If it makes something snaller by using compression it is a crusher if it has teeth designed to cut it is a shredder. I don't really know but,I think if I through a sledge hammer into that machine I would say that that and railroad tracks would probably screw that machine up. They will never run a sledgehammer because they know they will fuck up the grinder. I think most of you know this already. They may be able to run a hammer through the car sized grinder, but that would be anti-climactic.