08-14-2008, 11:35 AM
People who are socially inept, or are completely unaware of their surroundings. I was walking to my gate yesterday in Atlanta's airport (which kinda happens to be North America's busiest) and suddenly the woman in front of me decided to completely stop in her tracks because apparently some random thought had occurred to her. So, me and the 17,000 people immediately behind me had to take evasive action, lest this senseless idiot be trampled.