Everywhere I seem to go, these machines seem to pop up and completely ruin a nice walk. The ones I have in mind are the ones that emit a high frequency noise when something is in proximity to them. The idea is that people can’t hear them. Well, I can. They are very uncomfortable. They seem to be everywhere all of a sudden. I don’t like the idea of them anyway, but they completely take over when I hear one out and about.
Has anyone else noticed them or is bothered by them?