Ironic?

This random thought popped up in my head the other day and it was about irony. Would it be ironic for someone to be killed by an ambulance? I would argue that it would because irony is about what you expect to be the opposite of what happens. In this case, you would expect the ambulance to save someone, but in this case the ambulance actually killed someone. So if my definition is true, then yes it would be ironic to be killed by an ambulance. However, it could also be seen as just bad luck, but because it is specifically by an ambulance, then I would think it's irony. That's my thought process anyway.