Time for a fox hunt!
It happens. Some years back every time I clicked the lights on at a Washington airport some A hole clicked then off. I knew the area and airport well so landing wasn't a problem----but it sure could have been if WX was marginal
I've never heard of PCL that clicks off. Where was that?
Why do I have a feeling it's one of those folks who gripes about the plane noise (after buying a house next to an airport)?