Reminds me of this which was instrumental in bringing about Emergency Exits.
http://en.wikipedia.org/wiki/Victoria_Hall_disaster
Our health and safety standards usually stem from tragedies and such. In todays age its easy to look back and wonder just what the heck they were thinking, but as in the Gillingham Fire story, these type of demonstrations were put on all around the area. They truly thought it was safe. Sadly for those killed, they were wrong. And you’d think this put an end to this type of demonstration but I have found newspaper articles which indicate that afterwards some of the surrounding communities were all set to go ahead with the same show!