i agree if it's turning left it's turning left , If you see it going in another discretion theres something wrong with U . ( like nascar ) They go left if you see them going right it's time 2 stop drinking 
I can see it going in either direction by not looking at it directly on, but out of the corner of my eye and it changes then I can look at it going in the other direction
It's like those 3D posters, you can't focus on it.
