We know tons of people are going to be travelling in the next week or so, but if you're flying for Thanksgiving, maybe DON'T watch this: A Scandinavian Airlines flight from Stockholm to Miami had to turn around last week when it hit serious turbulence over Greenland. How severe was the turbulence? Well there's a video where everyone's screaming, and you can see people get lifted out of their seats. The good news is that no one was seriously hurt. (WARNING:There's an F-bomb at :13 in the video.)