no dont confront him about it unless you are REALLY chill with ur dad. something simliar to this happend to me except it was a tennis medal...i found it in a shoebox in the garage adn was like dad, i didnt know you won nationals? and expecting a story starting wiht "oh yea, well i was number one on varisty blah blah blah..." i got WHY WERE YOU LOOKING THROUGH MY STUFF! PUT THAT BACK NOW!.