Loud sirens? On Monday? Don’t panic! In Haarlem and elsewhere in the country the first Monday of every month at 12:00 the air raid is tested to check whether the sirens work anywhere and can be heard, but also to keep the alarm system in the public consciousness. Somewhat disconcerting the first time you hear them if you don’t know about it! And even if you know it: in one way or another, I’m getting touched by that sound.