Visible Sparks

[DAAAAAAAVE]

Ok so i was plugging my external hardrive (Western Digital 1TB My Book) into the right side USB port. The lights were off so i kinda scanned down the side of my laptop with the USB plug looking for the right hole. I'm wearing headphones and heard interference everytime the plug touched the case. I look down and see arcs of power (sorry im not technical in that department) leaping between the gap of the plug and the side of my MBP. Is this a problem with the laptop or the hardrive or just some freak occurence?

 

[alphaod]

Static is commonplace—I wouldn't worry too much about it.

 

[clyde2801]

Wow. Have you tried plugging it into another computer in the dark? Have you tried plugging another usb device into your mac when the lights are off? Was there a sith lord in the room with you when it happened?

 

[DAAAAAAAVE]

Static is commonplace—I wouldn't worry too much about it.

Thanks good to know. Might have been happening more than i noticed then. Don't often use headphones when im at my desk and thats the only reason i picked it up