My wife does the same thing. It makes me rage with frustration.
She also takes pans with minor amount of food in them out to the yard to dump them. It attracts critters. I ask her, what do you think goes down the toilet?
“...She also takes pans with minor amount of food in them out to the yard to dump them. ...”
My wife dumps old cooking oil and stuff on a board out by the wood pile. I saw an ancient opossum licking on it. It could hardly move, but that kept it alive. I started chucking bread and veggies down off the deck. I don’t like feeding animals, but in their senior years ... ???
Did she grow up in the country? Old food is bait and critters are tomorrows supper. Also one must always make efforts to make sure fats dont go into the septic system.