You should be willing to go above and beyond in order to ensure the happiness of the people you care about. However, what would you do if your sister—with whom you have lost contact—kept ‘dumping’ her kid on you out of the blue? The story below is an account of a frustrated sister. The original poster (OP) had no intention of having a big family. As a result, she and her spouse decided to have just one child. Therefore, the unexpected arrival of OP's sister's child in need of childcare caused s…