The key to the siren is to let it be natural; to not expect it and to not anticipate it.
Then you are really being frozen in time and place; then your day is truly interrupted.
[AP photo, courtesy of Jpost]
[Apparently the siren is a secular, ‘goyish’ concept. Some argue for Kaddish to be read over these national loudspeakers… definitely an interesting idea.]
Whadya got: