My wife and I been traveling around the world staying at airbnb's for the last 4 months (www.shenventure.com is our travel blog). During our stay in Hong Kong,

My wife and I been traveling around the world staying at airbnb's for the last 4 months (www.shenventure.com is our travel blog). During our stay in Hong Kong, our host required a photocopy of our passport or driver's license. I think this was a clever deterrent on his part.