My office building is shaking. I think this is the closest I've ever come to an earthquake, and likely the closest I will ever come to one in very flat, very stable central Alberta. However, knowing the shaking is not due to natural causes is somehow not reassuring. They're redoing the roof on our three-story cubicle maze building and I keep wondering what they could possibly be doing up there to cause the floors and walls to actually bounce. Maybe it's time to go for lunch and watch from Tim Horton's to see if the building actually collapses.