The sky is falling. Or the ceiling, at any rate.
The city is digging up the street in front of my office for the seventh or eighth time in the past four months. (Seriously. I don't know if it's all one project, and I suspect not, but I cannot imagine why they have to keep digging it up, repaving, and then digging it up again the next week.)
This time they are using some sort of jackhammer that is mounted on a Caterpillar machine of some sort. It's enormous, and it shakes the whole building. We're a good 40' away, and I'm on the 3rd floor, but my office rattles every time they start the thing.
No, it does not act like a massage chair.