Rustoleum
Footballguy
They anchor little metal wedges on the concrete benches here to tear up the boards if they try to grind on them. Any chance to add anything like that?Nothing here http://m.homedepot.com/b/Estwing/N-5yc1vZiu will get through that? I'm not talking about destroying and removing, just damaging it.
BTW: went to replace a headlight in my car today, opened the hood, and saw the mechanics forgot to screw the cap back on after changing the oil a couple of weeks ago. Lovely. Dipstick still reads full and the engine isn't filthy or anything so I hope I don't have to worry about debris in there. I can see where a little oil got soaked up on the hood liner/heat shield though. Definitely going to call the shop tomorrow and let them know though.