There is a cow with its head facing east, so which direction does its tail face?

No matter how many times the cow turns, its tail always faces down. This is a brain teaser. Most people will be blindfolded. Think about the cow's tail. It will go there if it doesn't face down. It is rare for a cow's tail to face up only when it is out of control. The topic tells you to turn around in place. The cow was not arrogant at that time, so its tail had to face down.