Wongsuzie............... no, you must be kidding?
ANY opportunity for the cabin crew to come sit in the flight deck SHOULD be taken. I understand there are times you can't.
I just had yet another fantastic trip with the crew, the ISM and 5 CC came out for drinks and we ALL had a good time.
As I've said many many times before, the whole relationship between the Cabin crew and the Cockpit crew comes down to the ISM. End of story full stop.