We hear many stories where kids have terrible experiences with their foster families. However, that’s not always the case, for there have been instances where people become foster carers out of the purity of their hearts and not just for the money.
Even the original poster (OP) and his mom loved fostering. But, after his mother passed away, the poster couldn’t handle a foster kid with special needs. In fact, he was so frustrated with him that he decided to break the promise he had made to his mother and give up that child.
More info: Reddit