I would hope that before anyone, CA or FO, pick up the mic to yak, they would talk to each other. Something as simple as;

"You tell'em anything yet?"

Or, "I'm making a PA, don't say Phuck!"

If you are a yacker, do it before pushback, then s. t. f. u. because most people are sleeping, watching the TV, or listening to their music, so you are just wasting futons.

And...are the F/A's done pitching that A/E card? Seems my last couple rides in the back (yesterday in fact) I've not had to listen to that five minute sales pitch. I hope they are done with it, finally!