Coefficients of Friction and some other random frictional accounts

This posting is just for the curiosity factor.

First, here's a list of some coefficients of friction. (mu).

Each year, scientific studies are nominated for Ig Nobel Awards- which "honors achievements that cannot or should not be reproduced".  In 2003, the winning study was titled "An Analysis of the Forces Required to Drag Sheep over Various Surfaces."  

sheep found 2000m above sea level in a New Zealand snow storm,

being dragged to safety.