ironic (idea)

It's ironic if a fire station burns down while everyone's out fighting a fire elsewhere because the fire station is for housing people to put out fires and therefore is the least likely place for a fire.

It's ironic to use words so that they mean the opposite of their literal meaning. (Sarcasm and such)
Incongruity between the expected/normal results and the actual results.

_{(Request permission to nuke Webster_1913, sir!)}