well, maybe you can come over and teach me then...

anyway, i posted this because having acars on board, we do monitor 121.5, and at least 2-3 times a day you hear people making especially a call to ops on guard by mistake, and right away you hear "you're on guard".
i understand if you hear the same person making the same call for 2-3 time over on guard, than i would probably say something myself, but right at the first call, to me it seams unnecessary. anyway, like i said, just my .02 cents.