As well as the smaller than expected attendance costing them some lost revenue, the evening also destroyed one of my flashguns, and meant that one camera & the 16-35mm F2.8 would then spend a day in the airing cupboard.
Both of which seem to have survived the ordeal, although I guess I will have to keep an eye on them both over the coming weeks & months.
There was no doubt that there were a lot of fireworks launched (they said about 4 tonnes) there was no real pattern to it, simply lots of big bangs all rather to close to each other. After the first few there was so much smoke that photographing the display was next to pointless.