When CO was code sharing with CSA, a family came off an overnight flight and they were connecting onto our Orlando flight. We were standing behind them at the gate counter line, and had to back up about five feet to get fresh air. As people came up and saw the space in the line, they assumed that was the end of the line and get behind them. We would watch for a second til the new people got a wif of the offending passangers, and then point to the back of the line. Lucky for us they were in the back of the plane and we were upgraded to the front of the plane. We didnt have to deal with the smell after that. But I do pitty the people who were forced to endure that for the next 2 hours.