It is absolutely unacceptable that cabin crew be trained in flight! What then do they do on the ground one must wonder?

An F cabin is such that it should afford the paying pax the best flight possible. How anyone can argue that performinmg a seat demo in F, let alone any cabin for that matter, is "OK" is way beyond me. The "human feel" must come from the cabin crew not from airline training in flight!

You pay for F for a reason!