In case you didn't know, my wife and I decided to take the kids to Quebec City. One of the main tourist attractions is The Citadel. Outside the Citadel guards stand watch 24 hours a day. Their main objective it seems is to not move or show any expression while tourists try to make them laugh. It's not as easy as it sounds as people will do anything to try and make them let their guard down.
I don't know what it would take to make these guys move, we tried really hard. But this guy changes his expression less than I do. Maybe we should have stood a little closer?