Also tried in the ceiling, and when I touch the earth the one which didn't glow now glows, and the two which did glow now don't.
If I don't touch the earth then this is reversed (i.e. the two which don't now glow, and one that did glow doesn't).
If I don't touch the earth then this is reversed (i.e. the two which don't now glow, and one that did glow doesn't).
