I want to do this with my cats because the oldest ones a beast and roams the land, he has bagged a hawk. But sometimes they don't come back and I just write them off as dead.
Have you ever watched Star Trek Voyager? They have a really funny relationship with a alien species that lives like 14yr max? So by 3yr she's an adult, and she starts dating the most slimy con man alien. It's pretty funny. But yeah animals don't have complex human social contracts or systems like we do.