I'm not completely shure, but i don't think you can.
Chat with our AI personalities
If you are talking about the bad egg, it does not. That's why it is called a bad egg.
Yes it can.
By using a AR and catching someones Pokemon it will be called bad egg
Yes, Delete it, it will NOT hatch so its just a stupid oval.
Forever, a bad egg is exactly what it sounds like. You could walk for an eternity and a half, but a bad egg will not hatch.