Does the macbook pro gives a slight electrical shock when charging?

When the Macbook Pro is charging, I can feel a little electricity in my fingertips. Unfotunately, I don't have a three prong outlet, just two. Either way, I think this was not supposed to be. Anyone can share some answers?
Thanks,
Muriel

You need to use a proper ground plug (third one), if there is a electrical short the metal case can conduct deadly electricity right into your body.
However the Mac uses low voltage DC current and the deadly stuff is all behind the power brick, but the deadly stuff can come from another means with other equipement.
What your likely feeling is the equalization of electrons between your body and the metal case, something your doing is reducing your bodyy's electrons and your MBP has spare ones so they transfer and you can feel this sometimes.
If the difference is built up enough, then you get a nice zap, that's how lightning works.

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