I fancy the "local break in the space/time continuum" explanation, because it has helped me accept certain other situations NOT pertaining to aviation for quite some time... The whole concept is actually a source of hope, wouldn´t you think?
Otherwise, maybe they flew a short shuttle to Whoknowswhere when you saw him the first time.
Maybe it was his twin brother.
Maybe you just thought it was the same guy.
Don´t worry: definitely not what you were implying/suspecting/fearing.
(BTW: Tonight´s Sancerre was rather expensive but good!)