Buyer wants copy of passport?

I have bought and sold expensive equipment for may years both here on audiogon and on Europe’s audio markt.de and I have good feedback on both.
for years buyers was satisfied with photo of the equipment and as a buyer I was to.
Now  buyers wants videos of the equipment playing and also copy of passport and pictures of yourself together with the equipment. Would you accept such demands?
sending pictures of passports to a stranger seems not so comfortable !.?