Humor does not diminish the pain - it makes the space around it get bigger.
And unlike the earlier bombing on the World Trade Center a major landmark...
Humor results when society says you can't scratch certain things in public...
London is completely unpredictable when it comes to weather. You'll start a scene and it's a beautiful morning. You get there at 6 in the morning set up you start the scene start shooting. Three hours later it is pitch black and rainy.