Well said Bongle! Enough of handbags at dawn already!
However I have to agree with RYRpliot.. for it is written that "jumpseat travel is a privilege" (but it can be used to your advantage if you keep a low profile, and use it sensibly).
Captjns is incorrect, and comes across as the type of full-stroke winker who turns up at the aircraft before the passengers, without having spoken to the dispatcher .. and, if he can be bothered, introduces himself by saying: "I'M JUMPSEATING WITH YOU" , and then hangs around in the galley getting in the way. He might even be the jumpseater I had once who sported a natty Captain's uniform cap with gold oak leaves on the peak, which he bought on t'interweb. Very smart he would have looked too, except it was two sizes too big...