Last night at a local car meet up I frequent there was a small dash fire due to a switch and some 'custom' wiring burning out. The engine was turned off and an extinguisher sprayed under the dash, which turned out to be be unnecessary, but its better to play it safe. The car is fine aside from slight damage to a section of the dash foam. I don't have any photos, sorry. This got everyone at the meet talking.
How many people on this forum have a plumbed fire suppression system in their project cars?