Laptop charger giving me electro-powers?

[Asa Samuel]

Ok, so here's the story.
A few months ago a bought a replacement charger for my laptop, everything was fine except the part that plugs in to my laptop was slightly too long and there was a bit of exposed metal, I decided to use it anyway and have had no ill effects (Keep any flaming for that until later...) until just a few minutes ago.
Me and my girlfriend are sat on the bed next to each other each with a plugged-in charging laptop on our laps, she starts stroking my skin and gets a weird tingle/electric shock feeling in her finger and if she touched my ear I could hear a strange buzz/vibration as she moved her finger. I immediately thought it was something to do with the laptops and narrowed it down to my charger being the problem. If I took my laptop off my legs the shocks didn't happen, nor did they happen when I unplugged my charger BUT they still happened when I had mine plugged in, but hers not. It also didn't happen if I touched her.
So, is my exposed-charger giving me electro-defence-powers or can someone just clarify whats going on?

EDIT: The laptop has been dropped a couple of times which resulted in a replacement screen but AFAIK no other damage was sustained.

Cheers,
Asa.

P.S. No, I'm not going to use that charger any more.

[BurningSkies]

Too late.

You'll never have babies.

[Asa Samuel]

There's plenty of people on here that know about electronics so surely someone can tell me what's going on?

[Bassman316]

I remember years ago when I was a little kid I sat next to my mother on the sofa while she had one of those heating pads on her back. She touched my ear, and I heard/felt the exact same thing you did. It freaked me right the hell out! I'm curious what causes it too.

[rr5025]

[DUC1098]

Electrons, in a circuit, travel from negative to positive. So, if your computer was shorting out and causing you to get a negative charge, that could be a reason. If her laptop is working properly the case should be grounded, so the electrons from your laptop would have moved to hers.

Basically like a static shock, though it would continue since the electrons are being replenished. When she no longer had her laptop she was probably no longer grounded which insulated her, causing no appreciable electron flow. The "shock" should continue as long as you are being "charged" and she was grounded, no matter who touched who. Why it worked when she touched you but not you touching her, if I understood that part correctly, I don't know. Possibly makeup or something similar on her skin was acting as an insulator?

Laptop chargers are only outputting 12volts max, usually several hundred milliamps. So you might get a sensation similar to "licking a 9volt".