I still have the question how do you identify whose SLF mobile rings when all you have is the general are rows 6-8 and a sea of indifferent faces...
The second question is you still have an SLF holding and talking a modile (I really don't care why they talk to their cellular during the flight no reason is serious enought to endager a flight). How do you take it? Do you ask? He or she will laugh in your face and keep talking?
Snatch it? Then you open a Pandora box for you to sued for bodily harm to the pax ruining his/her mobile etc.
I think the solution lies to exorbitant and more expensive fees for using the mobile on board in the region or 500.000 Euros per 30 sec. 50% to be offered as bonus to crew and other SLF for bearing the use of the mobille.
Rwy in Sight