My dad used to feed the neighborhood dogs by putting his old bacon grease pots, or anything else he didn't feel like eating. And he was too lazy to wash his dishes. (He was an old man at this time.) At least 2 neighbor dogs we know of died from his over rich food. I ended up finally "keeping my dad indoors," to prevent this and other behavior by putting him in a senior home. He lived there a year and a half. I got a much needed break.