Newton says; every action has its equal and opposite reaction and yes it is not only applicable to physics only but also it is true in our life.
See, if you break someone's trust start waiting for the time, when some one will come to break your trust
Its hell truth if you any thing wrong with one you just made a dot to circle from where this bad deed starts to travel so long, about 360 degree as earth is round and it come back to meet you.
If you mistreat your parents I advice you to do family planning and do not give birth to a child who will do the same, not exactly same he will mistreat you more as u did with your parents. Every rise has fall here do good you will get good serve people and live happy life!