Here is a real life example from BC of why it is so important for home sellers to interview potential realtors before listing their home with someone. It is so important to ensure any agents you interview are giving you a true picture of the real estate market in your neighborhood and that they are truly working in YOUR best interest.
http://www.theglobeandmail.com/news/investigations/inside-a-fast-growing-bc-firm-that-has-home-sellers-crying-foul/article29578417/