I didn't think I was the type of person who would fall for a scam. A $15,000 charge on my credit card proves otherwise.

The author (not pictured) thought she was donating $20 to a worthy cause while walking her dog in a park. Later, she saw that the charges totaled $15,000 instead. ZeynepKaya/Getty Images Shortly after moving to Chicago, I got scammed by three well-dressed strangers in a park. I'm a smart, competent adult. I didn't think I would ever fall for something like this. Months later, I'm still disputing the $15,000 charge with my credit card company. Eight months ago, our family of six packed up...