This video actually makes me kinda sad. <br>This reminds me of when I was in Japan where some of the stores/malls had high pitched noises to keep birds and stuff away and I remember my ears hurting when it didn’t bother anyone else.,(reply>), @Planefan 08 In some places they blast high pitch noises down alleyways to stop teenagers from congregating in there.,(reply>), @Planefan 08 well it’s still a thing people do,(reply>), @Planefan 08 doesn't stop most shops where I live,(reply>), @Alma Chizit I don't think that's ethical use of tech,(reply>), I thought they used it to keep teenagers away