Oops Thud!
I remember a female Purser based at BHX who incorrectly tried to close the front door of a 737 in DUS, leaned out too far and disappeared from view! Luckily the engineer on his headset was underneath the aircraft and was able to partially break her fall. Both survived, she was off work for several months but returned to flying and is now happily retired.
Its not just about having the correct SOP's it's also about making sure you follow them. Remember, 1 hand for the aircraft, 1 hand for yourself guys!
Safe Flying