Kenneth, you forgot being shot in an empty warehouse...
there is one law that must be followed should such a thing occur:
throughout the video, it must be obvious that no one is plugged in. they must rock out hardcore despite no sound coming out, as the 'sound' for the video would clearly be the studio track. on top of this, they must act as if they are playing for a crowd of a quarter million. in the desert. or on the mountain with bad weather. with swords. and cheese.
I agree. And for the "Luca doing something"-part I think it would be insanely cool if he was reading a book or perhaps collecting insect samples. Or baking bread.