I believe...

the saying that says What Comes Round Goes Round
The reason that I'm saying this is because I am seeing it happen, right in the family line, not my family though. Let's start with the characters in the story, A shall be the relative, B is A's daughter, C is A's son, B and C are siblings, D is A's ex-husband(they are divorced).
Time check now, its 11.30pm, and I shall begin...
A used to be a very nasty person. She takes advantage of everyone in the family, espacially the siblings. A had a daughter and a son. Being overly protective whenever t the son is concern, C has never held any job before. On the other hand, B is an agent, but I'm not gonna say what kinda agent is she(deals with bug money). Previously, the house expenses are controlled by C, the most doted child. But something happen, B became the head of the household. Although A did not like the situation, she had no say about it as she is getting older. Ever since B took over the household, things have changed. Right now, A is like a kid, getting pocket money. When A spends her money too fast, B will question her.
There's still so much more to tell.. I felt my eyes feeling warm when I'm asking my mum about this matter. B has even manipulated A into selling their flat and occupying the flat that originally belongs to D. I really don't know how to continue anymore!!! B has even chased out her aunt to live with C, when C is jobless and can barely keep himself alive. The aunt us very sickly and she can barely see properly due to her deteriorating illness. She is almost blind, and she's picking cardboard boxes to earn a living. She's rhe most innocent party in this story. B is leaving her aside as she has lost her value. Right now, I believe that karma will befall on her, sooner or later. She will reap what she sow, I strongly believe...