Lately I sometimes have ghost touches when plugged in (usually a few milliseconds before pressing down the power button or while moving my case).
I think either this is the case:
or its a problem with static (caused by the cable, the power stored in the power button - wich @stefan told me about today yesterday - and the copper in my self-made case.)
Or a combination of both.
Should we avoid things that cause ghost touches? I mean: can it damage the screen so that ghost touches will appear when not plugged in too?