One-Way Ticket

You step outside your house for a breath of fresh air. After a while, you want to get back in, but you can't--you locked yourself out. It is not your home any longer.Or, alternatively, you step outside your house to find out what's going on in the neighborhood. When you get back, you find its interior has changed beyond recognition. It is not your home any longer.Or, yet again, you step outside your house to meet other people. By the time you get back you have changed beyond recognition so that everyone inside the house regards you as an alien. it is not your home any longer.