What is irony? How about a burning fire engine, that needs the fire department to come and put out the flames?
The picture above was taken after a fire engine crashed into a building and caught on fire. Two hours later, the streets are still barricaded for a block in every direction. The building is missing a good section of that corner, too.
EDIT: According to the news, the fire engine was knocked into the building by a another car (I think the grey one parked next to it in the picture) that did not stop for the emergency vehicle as it crossed the intersection.