Is there a reason why someone would spray metal, plastic, and/or automotive parts with diesel fuel?
I found out today that my father does this on a regular basis (which explains that smell on the couch). I saw him spraying objects that looked similar to a hitch (like for a tractor) and other objects that are probably made of a similar material (sorry, I don't know my metals and such things). I also saw him spray a small, heavy, plastic object. He also managed to spray me too.
I'm just wondering if spraying those things with diesel fuel is normal. I could understand spraying them with something such as WD-40 to prevent rust but I see no reason to spray them with with diesel fuel.