10+ years. Right knee. As despegue said. There are many places where there's no AGNIS. The tip about getting someone to stand in front of the aircraft in-line with the wingtip and then main gear - all while you sit in your seat in the strapped-in flying position - is invaluable. As is reading the FCTM to determine how far away an obstacle has to be from the nose to clear it with the wingtips when self-manoeuvrering. There will be more than a few here that have had to pace it out to check before attempting to move the plane on a dark night somewhere with no help from anyone on the ground.