Story, photos by Cassie Hepler It was bound to happen someday… the dreaded almost spending an overnight at the airport debacle. In my over almost 30 years of flying on airplanes, I had the worst and slimiest experience ever though American Airlines. I had a very slim window to make a layover and when I got an email the night before asking if I wanted to get paid (up to $700!) to switch my flight date and times, I had a feeling this wasn’t going to end well. Then at the gate at Phoenix airport, they pushed back the flight time a half hour making it near impossible. More than…