I suspect that would rapidly heat up the metal and potentially burn that victim :(

Calm down satan

I need an alarm clock that does this automatically.

They make nose rings very convenient for 9v

This is the equivalent of people going around sticking plungers onto bald heads.

Wouldn't the electricity just go through the metal piercing instead of the (less conductive) flesh, causing no shock?

“Watch me evil Pingu’s head with a lorry battery!”