early haggis could probably stand on three legs when threatened.

I wonder if this then developed into the mountain haggis.

This has two legs shorter than the others (on the right-hand side) to aid it running around the hills of Scotland. It was also believed that this is why the haggis always runs in a clock-wise direction - otherwise it would fall over. In fact the haggis hunts saw that if they could get the haggis to run anti-clockwise they were easy to capture.

You can hear my "Burns Special" broadcast where this is not discussed as the first hour in "Thanks Goodness It's Folk" at http://www.sheffieldlive.org/index.php?page=6