Just a 'dumb thought'
But a serious Q.
If you have boarded on time, with, say a 30 min delay to push due ATC. Do the safety brief, identify the typical 'no baggage paper reading frequent flyer' located in the typical seat that blocks useable exits through panic. Watch them ignore the saftey brief for their survival. File an ASR and offload them. It will achieve nothing in a short time, but when 10-20 gold card holders see it, maybe it will start to cascade through the ranks.
How many have the 'I've flown this route 200 times before brigade' got the overwing? can you rely on them?
I know, I am in the industry, I hate flying (believe it or not, as a groundie). From jumpseat,in the good old days, to RHS single crew, in the even better days, 'I need to brief you on the following in the event of an emergencey' got the ears to prick up.
But then as staff, no matter where I sat, a crewmember could lean over and say, 'left engine fire, what would you do'
Sorry, but then they pay no attention to the security Q's at checkin, heard 'em all before. Hell if not themselves, they got a good lawer and company insurence to boot.........................
Just do your best, and look after No1