Turn Signal

An English guy is driving with a Polish guy as his passenger, when he decides
to pull over because he suspect that his turn signal may not be working.
He asks the Polish guy if he doesn't mind stepping out of the car to check
the lights while he tests them.

The Polish guy steps out and stands in front of the car.
The English guy turns on the turn signal and asks, "Is it working?"
To which the Polish guy responds, "Yes, it's working....No, it's not
working...Yes, it's working....No, it's not working...."