With regard to my lightning strike as pax, it appeared to strike the fuselage some distance behind the flight deck - would the flight/cabin crew actually have any indication that this had happened? I'm curious as there were no PA's from the flight deck - I would've expected just a few words to say what had happened, nothing to worry about etc, as it could be a bit distressing if you were a nervous flyer. It was at a fairly high workload situation however - squally showers on descent quite close in to Gatwick, so perhaps not top of the crews priority list to be doing PA's...
Also, if you witness such events, or see something that looks out of place should you inform the cabin crew? I'm never too sure if I should point out things like that as I don't like to look like I think I know better than the crew