A Philly-bound U.S. Airways flight out of L.A. had to make an emergency landing in Kansas City Wednesday after a service dog started pooping and wouldn't let up, leaving passengers physically ill from the stench. "About an hour into the flight, I started smelling this terrible smell. I look up and there's a dog pooping right in the middle of the aisle. It's a big dog, three or four feet tall or long, and he was just going!" said passenger Steve McCall. "An hour later, it still smelled bad, and after they cleaned it all up, it pooped again!" According to McCall, the dog's owner was apologetic, and offered to buy her fellow passengers Starbucks gift cards.