Be careful going through old drawers (sewing machine drawers !!!!). I've encountered everything from critters alive and dead to rusty razor blades. I now dump the contents into a shoebox before exploring. And be sure to do this before loading said drawers/cabinet into your car- I wound up with a very expensive mouse family condo in my Subaru AC ductwork. A few mice jumped ship as I unloaded the treadle, but there were other smelly stowaways!