Why don't people see the yeti any more? - BBC News
I see that belief in the yeti is given as an explanation for low doorways into houses. (Yeti can't bend down to get in, apparently.)
As always, I'm most fascinated by the foul smell said to be associated with all yeti/bigfoot creatures, especially as I knew a guy who got frightened by loud bush trampling sounds and a foul smell when he was camping once in state forest north of Brisbane.