I usually know when to expect it going off.. Like I mentioned, the times I get surprised by it are when they test it every month cuz I always forget.. Every now and then - or every few years - we have a REALLY bad storm late at night.. Like 2-3am.. Super bad winds, lighting, hail etc.. kinda creepy that late at night.. Sometimes the sirens will go off during those kind of storms, which is kind of creepy cuz, as you said in another post, you can't see anything..
We're just about in tornado season here, so, as I always say (and used to say in the radio when I was a tornado spotter) "about to get nasty out here.."..
Friendship is like peeing your pants.. Everybody can see it, but only you can feel the warmth..