Probably a silly question, but nevertheless...
Going back a year or two, I was on a BA A320 (I think, was either that or an A319 or A321) from Oslo into LHR.
Just as we were coming down over London, I could see all the usual "sights" from my seat, there was a loud crack - loud enough to spook me a touch - which the pilot promptly, and very calming, explained away as being a lightening strike; something he declared to be both normal and nothing to worry about.
Can such events ever be more serious than just a strike being absorbed, presumably by an a/c's own conductors?
Again - sorry if it's a stupid question!