Because I empathized with the person she lashed out at. I've received some nasty threats and horrible untrue accusations from customers and it really hurt me and humiliated me when my boss had to ask me if that was at all true. I couldn't possibly treat someone with that level of disrespect and I couldn't believe my mom would do that to someone, anyone, even though she's been their client for the past 15 years and never had an issue. And I had absolutely no issue with my service at all. Yes, it was a rip off, but nothing so extreme as to write a horrible scathing review that hurt their reputation by giving them not only all zeroes (which I would never ever do) but included some nasty description about the person who helped me. It sickens me that people do that, so yes, it was the final straw with my mom and I am intending on moving out.