It's risky to overstay your welcome. For my part, I'd rather show up early and be among the first to leave than linger and ignore any indications that the hosts are trying to evict you. The story below is an account of a frustrated son. A serious lack of finances forced the original poster (OP) and his wife to move in with his mother. Sharing a confined space strained the already tenuous relationship between OP and his mother, who had never been close. But when OP's wife celebrated her birthday…