Got my goat

I would like to know why when the goat chained to a tree gets tangled, it always seems to need to be led clockwise around the tree to untangle the chain? You would think that normally the goat would be tangled clockwise half the time, not always counterclockwise. Does this phenomenum have a logical cause, or should i do a better data collection to see if my observation is in error - i am not the primary untangler of the goat. But time was tight and boy had to catch bus for school, so dad got the job.
This goat is one of the most patient goats we have ever had - she leads well. We are all looking forward to goat milk, goat kiefer and goat cheese in the spring - if she is smart enough to make it through the winter. Goat on a chain is a popsical for wolves and other rural predators. But our dogs like the goat and the preds usually will not mess with a pair of large dogs. The dogs don't know that the goat will be larger than they are when it is fully grown, but will weight less. And it will hold its own, specially if i can fix the fence and get the goat off the chain. (Fat chance - fences don't usually hold goats.)