I have noticed on my new 2017 MacBook Pro 13 non-TB that everything I insert a cable into the USB-C/Thunderbolt3 ports .. there is visible electric sparking. This can't be good. I use my laptop on the road and when back at home I plug in the Apple power and DisplayPort cables (external 4k monitor) and need to unplug/plug at least once daily. I've never had this problem with any other laptop - Dell, Thinkpad, MacBook Pro 13 2015 ... Has anyone else had this? It seems to happen as I try to align the male connector into the female port .. which is more difficult with it not being MagSafe. Smaller USB-C means it is harder to insert perfectly directly in most human scenarios ..