I remember this back in highschool.
It doesn't hurt, it's just so goddamn annoying...triggering my murderous rage D<
But hey, think this could work on dogs? I've been looking for a dog whistle "audio" file >_>

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Everyday I'm tumblin'

I can hear it or rather feel it... and it is annoying. To me, it's barely audible but when it's playing there's a strange pressure in my head it gave me a small headache.

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Can you imagine an imaginary menagerie manager imagining managing an imaginary menagerie?

I could hear it clearly, but to be honest it wasn't that bothersome.
I hear ringing in my ears a lot, and it wasn't too much different from that.

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http://kittenpatriot.wordpress.com/

Didn't listen to it, but I learned about it from a chinese drama called Forensic Heroes a while ago. xD

With exposure, it can affect your hearing or lead you to serious slash permanent ear damage. :/

Couldn't hear it. In fact, couldn't even hear the 15khz (and I'm only halfway to 40, thank you very much!) and I try very hard to take care of my hearing. Course, the way my mom is now, deafness with age may run in the family...

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I am a breath of insanity in a world of chaos.

Me: Performing Random Acts of Klutziness for over 30 years.

Oh I hate that Mosquito ringtone! It irritates me to no end. I doesn't hurt my ears but it is annoying.