Seattle mayoral candidates are answering your questions on KUOW. On today is Jessyn Farrell. We also asked for your questions for the head of Metro Transit. What makes a fantastic bus driver and a less-than fantastic one? And we look at the rise of medical crowd funding, where you go online and ask strangers to pay medical bills that you cannot afford. It may sound callous but there are certain ingredients that makes a medical crowd funding campaign succeed or fail.