I was thinking about that while the guy was showing us the walk around the other day. The other guy I was with was standing right under the aileron on a CRJ700. I just stood out in the sun. Not worth risking getting bonked in the head if somebody moves the yoke or something.Always stay clear of flaps and slats, both yourself and the equipment. It maintenance decides to drop them before clearing, a peice of equipment will trash them. If it's a Boeing with inboard leading edge devices that will droop with no A system pressure and you are mucking around them, you will lose whatever appendage is there when someone opens the interconnect and pressurises the system.