Let's see here:
As a kid it seemed like I would always walk up to the open window right before the SD-10 about 10 blocks wound up, that started my fear of sirens (loud noise that comes out of nowhere, why wouldn't a kid be scared) My mom pointed out one day what a siren was, by sheer coincidence, the first siren I saw that I knew to be a siren was a SD-10, I think it was that SD-10 too.
Grade school:
The playground was separated from a 2T22 by nothing more than a small side street and recess was during test time ... this was not good...
Before a tornado drill in that school by the 2T22: Brian (a down syndrome kid) came up to my 3rd grade classroom and said "These are for Wesley" he laid a set of disposable ear plugs on my teachers desk, I was kinda embarrassed, but I thought it was a cool gesture.
Summer time middle school:
I was inside Eddie's drive in getting lunch for my mom, guess what time it was... The 1000 mounted to the roof of the National Guard Armoury wound up, I went out to the car with it blowing (bad idea) right before I got to the car the horn swung my direction, I was maybe 50 feet from the building the T-Bolt was mounted to, I was less that 100 feet from the horn, the sound was so intense it felt like a weight on my back, I bent over and screamed it was so intense, prompting a scolding from mom when I got in the car
College: Not really a siren though
I had bought a NOAA weather radio to keep myself a little better informed, one night, I was sleeping good with the windows open, I knew we were under a Tornado watch, but it was such a nice night, all of a sudden I am jerked out of my sleep by a NOAA weather radio screaming, I about JUMPED OUT OF MY SKIN!, I went over and checked it "SEVERE THUNDERSTORM WARNING" which was a relief, I was scared of putting the windows down when the SD-10 revved up, I turned off the alarm, closed my windows and laid back down, at that point I heard my mom "Isn't that the best $40 you've ever spent."
Watching youtube videos of sirens has helped me get over my fear as much as one can.
The youtube video that has gotten me the most by far is: ....
Jeb's ACA Howler walkaround video:
I was watching said video full screen laying on my bed, Jeb was talking soft so I had the volume turned all the way up, ... "It was pretty Potent when we..." and I found out what a recording of a ACA Howler sounded like when blasted at me with the force of 130watts per channel, I jumped and turned down the volume, almost more out of fear of my speakers then for my ears.