Back on April 4, 2009, I was headed to DC with a group of students from Mexico. Our flight from Mexico City to Houston was normal. We circled the airport for a while and it was a little bumpy, but nothing awful. It was more the circling that got boring and frustrating than turbulence that bothered me. Immigration in Houston was a long long process and we were very late for our next flight, but lucky for us (at least I thought that at the time) the connecting flight had been delayed over an hour. The first part of the flight was fine. I actually wasn't worried about this flight. Houston to DC is not a long flight and one I've always considered routine. However, as they were giving out the food, the plane hit some very light turbulence. We were all the way in the back, so we felt every little bump. Suddenly, right as the food cart got to my row (the last row), we hit some violent bumps. The plane dropped suddenly and moved from side to side. The food car flight attendant fell to the ground. The flight attendant that was still in the back of the plane right between the bathrooms also fell down. Food was thrown off trays, people freaked out, and I was gripping the armrests. I turned around (first and only time I've done this) and asked the flight attendant who was now bracing herself on her knees between the two bathrooms whether or not this was normal. She said, "Yes, it's just bad turbulence." So at that point, what could I do? I didn't eat my cruddy Continental box lunch. We had a very bumpy flight for probably another half hour or 45 minutes, although it felt like more. When we finally landed at DCA, the plane hit the runway pretty roughly which was just how a flight like that should end, and the pilot finally came on the speaker which he hadn't done all flight. He apologized for the rough ride saying it was bad at all altitudes because of bad weather over Tennessee. When we got to our hotel, by chance I landed on the weather channel where there were Tornado WARNINGS in parts of Tennessee. It would appear we hit some pretty wicked winds near those storms. That flight nearly ruined me as a flyer. I've gotten past it for the most part. I fly again from Mexico City to Atlanta, then onto Richmond, Virginia in July. Hopefully it will be an uneventful flight. I have flown since then, but I think since that turbulence was so ridiculously bad on my scale that the rest of my flights, (2 or 3 since then) just haven't seemed that bad.