They do it with submarines too or at least they use to do in the 60's by turning towards a known submarine detected by passive sonar and head straight for it.
They call it "Chicken dance" but in the 60's you could not tell the depth of the submarine making sounds, but could only guess.
I have no proof of this of course, but I believe the Russian CO's knew you would turn from them and there by expose yourselves to their superior way of thinking
in peace time to stay out of their area
