Electrical shock when charging my iPhone

When I am charging my iPhone 3g and try make a call I experience a light electrical shock,

I am charging the iPhone via the usb port of my white iMac 24'

Has anyone else experienced this

Thanks

No sure havent. I would definitely talk to Apple about that.

is it static electricity?

I just had it happen too

I know it wasn't static since I tried it several times while not moving. It shocks me through the ear speaker lightly. Additionally I never had this happen with my previous iPhone 3g on this computer and charging cord.

Other people have the same

I'm experiencing the same issue, and more people have it here
http://forums.whirlpool.net.au/forum-replies-archive.cfm/1047925.html

Thinking of what to do next... Get a case for the phone?

Complain of brain damage and a life changing traumatic experience and sue.....haha just kidding....