It's *still* your original idea though.* Consider it this way:*
   You came up with it on your own.* The fact that someone else
   *happened* to _also_ have the same notion doesn't make it any
   less original.* It originated from _you_.. and *also* from
   them.. but that it came from them as well, does not take away
   from it coming from you. Also, look up the guy who came up with
   it.* That you BOTH came up with the _same idea_ independently of
   each other speaks volumes.