Lovely Delta flight to Atlanta

I am on a flight from SFO to Atlanta, and it's ridiculous. I'm in seat 44D, which turns out to be the worst seat on this Boeing 757-200 plane -- the last aisle seat. I dread sitting in this seat. There is currently a line of eight people standing next to me doing all sorts of ridiculous things while waiting to use the bathroom. One elderly woman decided to rest her arm on top of my chair and rock back and forth. I asked her to stop. A guy in tight jeans decided to have a oh-so-invigorating stretch while standing next to me: he turned away and bent forward, sticking his butt into my face. I've been jostled by people and food carts probably thirty times since sitting down, and everyone seems to want to rest their arms, shoulders and other body parts on the back of my chair. Combine all of this with a crying, regurgitating baby, super-loud flight attendants sharing their lives with each other, and bad turbulence, and it's one of the worst flights I've been on recently!