I have a newer sewing machine I don't use very often (got it as a gift a few years ago). I decided to keep it set up for stretch stitching with a double needle so I don't have to keep switching stuff around. Went to loosen the bobbin tension and they'd covered the screw in green paint! Wtf? I can't be trusted to loosen a screw? Scraped out the paint with a tiny screwdriver and loosened the tension. 😎