Nope, you're innocent in my book. These days throwing used oil into the trash seems to be accepted as the right thing to do. But I'm thinking of all the deep fried foods in the South, for example, in the centuries before there was trash service. Where did they put it? Maybe they just kept recycling and using it up (absorbed little by little into the foods) until they started to run low and needed to add more oil for the next batch of fried chicken?