It worked; what more do you want?

Manchester United vs Bournemouth was postponed because of a bomb scare. In fact, the device was a dummy, which had left behind by a company involved in training sniffer dogs. There was a big hoo-haa over all the inconvenience of evacuating the stadium and cancelling the match. But at least the incident proved that the Man. U. Security system works. No one was killed or injured in a stampede. Imagine the hoo-haa if the device had been found after the match had been played.