The Madison Building of the Library of Congress was evacuated when a blueberry pop-tart caught fire in my office’s back room.

The pop tart was serverely burned and not edible.
My co-worker was a little more than embarrassed.
The room smelled like burnt pop tart the rest of the day.
The toaster is now gone.

So, the next time you see a building on the Hill evacuated, it just might be another blueberry pop-tart caught ablaze.