I have no clue where to post this BTW. So I made this little table behind my couch, that has an outlet on the side of it with two usb chargers and a power outlet (also added a wireless charger and LED lights). When I have a lightning cable plugged in, touching the exposed part that plugs into the iPhone, and I rub my Macbook (which is plugged into a different wall outlet), I can feel a faint current on the Macbook. If I let go of the wire, its normal. Now, when I remove the Macbook's charger from it, and hold the lightning cable, I dont feel the current. I just noticed that I didnt feel anything when I took the charger off the Macbook. I switched ends of the wire on the usb wall outlet, different electric wire itself, but Im still getting that sensation. Is it maybe one of the outlets isnt grounded right? I now tried every plug I have in the vicinity, and Im still feeling the current when I touch the lightning cable. Im thinking maybe its just the USB outlet I have...No? https://cablexpert.com/item.aspx?id=8541 That is the plug BTW.