ferfoqsake...
if you cannot correctly say it and/or you do not know its origin please keep your ignorant hole shut.
fourth point of contact
While landing under a parachute canopy, the jumper's feet strike the ground first and, immediately, he throws himself sideways to distribute the landing shock sequentially along five points of body contact with the ground:
1) the balls of the feet
2) the side of the calf
3) the side of the thigh
4) the side of the hip, or buttocks
5) the side of the back (latissimus dorsi muscle)
http://en.wikipedia.org/wiki/Parachute_landing_fall
You will now stand corrected.
*Slams door on way out*