Reminds me of a story my two Australian mates told me...
They were in Nepal trecking up a mountain...when they herd a noice from behind....was a little old Nepalese fella came past them at a good lick...he had a refrigerator on his back...they recon he was in his late 60.s about 9 stone wet through..
They recon he went past that quickly that by the time my mate got his camera out to take a pick he was to far away....and to cap it off he was puffing away on fag...