You can't own a dog or a cat or a hamster, or maybe you are a bug-loving type of person. However, it is enjoyable to have a fly as a pet for some time before it saddens you with its constant hovering around. That is why all you have to do is trap a fly and immediately place it into a small glass jar and watch, hoping to find ways. Offer it food or water or anything, and your fly should be contented at least while it lasts as a fly.