I seem to recall reading that most pilots turn right instinctively and this knowledge was used by fighter pilots to anticipate the break turn that the target would make when it realised it was under fire.
Derek Robinson describes it in "Piece of Cake", but if I remember correctly it was the other way round - the "natural" break was to the left, so if you were doing the shooting you should anticipate that, and if you were doing the breaking, a break to the right might be a good idea.