Just blast The brown note, down the phone.According to an urban legend, is an infrasonic frequency that causes humans to lose control of their bowels due to resonance. Effective frequencies are reportedly between 5 and 9 Hz, below the audible range for humans (humans cannot hear below around 20 Hz).
ok it may not workbeing a urban myth but if the person instantly shat themselves at the other end of the phone they wouldnt ring u up again.
I know what you mean it iant good people harrasing on the phones we had someone do that to my flat amte for days and days and she was going a bit mad with it all so i blasted a double horned air horn down the phone at them, they never called back. Served them right .