That probably depends on the training and the frequency of false alarms. If air-raid sirens (which we do have here in Switzerland) would start sounding, nobody

That probably depends on the training and the frequency of false alarms. If air-raid sirens (which we do have here in Switzerland) would start sounding, nobody would seek shelter, because everyone would consider an attack too unlikely. Of course, in retrospect, it would have been better to call the firefighters first. But to make such consequential decisions three days into a new job requires proper training and clearly defined procedures.