My Aluminium chassi is electrified!
When I have my Macbook Pro connected to the charger, the chassi become electrified. I do not know how many volts och amperes there is, probably not many. But when you drag the fingers over the computer, you get a humming feeling in your fingers. When standing on a chair, the humming becomes less. If standing bare foot on the floor you feel it very clearly, and if you holding something that is earthed at the same time as you touch the computer, it will hum so much in the fingers, that it hurts.
How can I fix or repair this problem?