i think i'm right in saying fireworks are only on sale in NZ for 3 days before bonfire night, which is why it's a novelty and people get so excited about them.  here's a chap setting up a firework display.  if you click on the picture you can see he's a rather short fellow, perhaps having become a victim of his own success.  he also seems to have wired his ears in to the detonators.

i just hope he's not a bomb disposal expert.