Again.... why is Yeti wearing leggings?
Believers don't need any evidence or reason, they will just desperately hold to any "evidence" they see, no matter how little probable it is. Blurry photo of a guy in obviously two coloured clothes? "Yeti". Humorous mention in a satirical "newspaper" written by tourists? "Another proof of yeti". Hell, they can even have magical powers of mind speak (seriously, this is what Tracker wrote in another post).
Well, if I was one of the students who thought he had seen, and even photographed, a yeti, I sure as hell would be running with the tail between my legs all the way back to Sverdlovsk
They just continued they journey, brave bastards. Or maybe they had been some proto-Greenpeace activits who believed in good intentions of yetis
"Don't hurt us, oh noble beast, for we come in peace"!