toddler speaks of Space men and Space craft

I have two sons born 14mths apert, the event took place, in the Kitts Green area, Birmingham, England on a bright day.  My husband took the eldest son to the local shop, should have been away about 20 minutes. He did not return until about four hours later we were getting worried over the two of them.  Then he returned and we wanted to know where he had been, his reply was to the shop.  He did not realise how long he had been away.  Then my son started talking about where he had been, he described somemen and what I realised later was very much like the inside of a space ship.  He did say what the men had done but to be honest I cant remember that bit. This child was too young less than 3 years old at the time so he had no prior knowledge to draw from.  It has been on my mind ever since and I am glad that I have told you now at least I have shared the experience.  He was not harmed in any way but was always intelligent as a child.  Shortly after their return we saw an object in the sky it was a cigar shape at first but then it turned and was a cicular shape as you imagine a ufo really it turned and was gone in a flash.
Date and time are approximate.  NUFORC has received many reports that are similar to this one.  We do not understand how young children, who apparently have had little or no exposure to the UFO phenomenon, can apparently possess seemingly detailed knowledge about the specifics of the subject.  PD