I have a worthless brother in law who swears to this day that he served in country. He was in the Army Reserve unit that trained drilled instructors during that time but claims he went over there on some top secret mission for which he supposedly was awarded a Bronze Star. This guy never left Astoria, Oregon in his life and as a long shoreman refused to take other jobs out of town because he thinks he is some sort of big shot there.
Apparently you worthless lying BIL..has lot's of company. Over the years I have been amazed at some idiot trying to pass himself off as a Vietnam Vet....they always get tripped up on the lingo....usually takes about 2 minutes and you can figure out they're lying....but most will continue..just like you BIL.