A friend of mine is staying at a hotel next to one of the big convention sites this weekend. Yesterday she tells me one of the hotels had to be evacuated and the fire brigade called when the fire alarm went off.
It turned out to be a bunch of jw kids having a prank. She had been speaking to the hotel manager who told her that this happens every year and only when the JW's come to stay!
She knows of another hotel where this happens every year too.
... A sign of desperately bored kids I wonder?