However, it could have been quite different. As part of the finale, i had 4 large salute cakes, one of which fired about 20 of its 100 comet/salutes before ripping itself apart.
this was the culprit: Imperial Warlord, from NG fireworks, part of Cosmic.

and this is what it ended up like: (click for big)


Particularly worrying is that there were live loose tubes on the ground, easily capable of firing off randomly and causing serious harm im sure.
However, something good to be said for the cake design is that they didnt fire. The fuse running through the tubes was not a single length, as im sure many are?? but a series of little lengths.
This meant that the tubes flung clear were not still burning in this case.
I dont know what i could have done differently to prevent it, and i guess it happened as safely as possible. However it was a little worrying!! I wouldnt like to be hand-firing next to anything thats gonna do that anytime soon.

Has anyone else experienced this happening, or is it a real rare thing?
Is it worth contacting the retailer? or doing anything different in future?