"More Strange Stories from My Past". Square Airplanes?

According to my Mother, a wonderful woman to whom I love dearly (she passed in 1994), during the Summer of 1951, 1952, and into 1953, I was obsessed with the notion that in the skies, were something that I was deathly afraid of.  She said that I called them "Square Airplanes" and often I would "forget" and go outside in the backyard to play and would suddenly panic and point to the sky in fear and often in tears and say "Square Airplanes" and run into the house, refusing to go back outside, where my mother would coax me into sitting on the covered porch where I could not view the sky.  Interestingly, as my brother 13 months younger than I would be playing beside me often, when he saw me panic due to the "Square Airplanes" he became afraid, not to the Square Airplanes, but according to our mother, when he saw me crying and afraid, he too cried.  Out of nowhere, the next Summer, my mother said that for some good but unknown reason the mindset of Square Airplanes ended.  Of course, she worked all Fall, Winder and Spring to help me overcome this strange phobia.  I really have no inherent recollection, nor do I really know or understand my alleged FEAR of of Square Airplanes nor can I imagine exactly WHAT Square Airplanes actually were!  To be continued.....Capt. Rick Rotundo