I remember looking at this for the first time many years ago. I don't remember the exact steps that caused the circumstance to appear but I left the page open with the sound on. For quite some time after that I spent ages trying to figure out where the intermittent clicking sound was coming from. It drove me nuts. I felt very silly when I figured it out.

Would be cool to get a system and contribute. I find it crazy just how far some of the sensors are triggered.