The rag I left on the table next to my vise for 3 days, and why my setup guy laughed at me
Walked in Monday morning to find the whole edge of my aluminum block rusted under that wet shop rag I forgot to toss Friday, and my setup guy just said 'that's a science experiment, not a part' while I stood there holding a scotch brite pad.
Wait, it rusted in 3 days? I thought aluminum took way longer than that to go bad from just a wet rag. Your setup guy roasting you while you're standing there with the scotch brite is brutal though.