in my younger much more foolish days. I ramped on a 748, sop's being no debarkation till the props were stopped. we would time and grab the blades so as to get a lift of 4-6' off the ground. the cakes would fly a good 200' if you tossed them in during rundown" these imbecilic tricks taught to me by the mechanic". heehee, oh well I survived my childhood, barely