I'm going to leave a bad review on a family member's business
Are you trying to destroy her business or something?
Yes, I wanted to destroy her business so she will know what it feels.
If you have a bad experience it is okay to leave a bad review even if it is family. But if you are doing it just because that is wrong. Not only will you be lying but you could be costing her business and her livelihood.
That is what I exactly want :)
Don't you think that's an awfully mean way to go about this though? Maybe you should just talk to the business owner if you had a bad experience.