Where do you live? I have never even gotten a mild shock off of anything from Apple. Maybe call Apple, or call an electrician?

How to properly ground a MacBook Pro
I have a MacBook Pro 4.1. In the past - from time to time - you could feel a bit of electricity close to the aluminium case when working in AC mode, but now things are getting worse. I can feel the
And https://forums.macrumors.com/threads/macbook-pro-13-eu-usb-c-charger-not-grounded.2162796/
Some people dont notice it. But all my MacBook pros over the years have done it. Lived in multiple homes in CA and FL.