I was stupid enough to use one wire and not two, or I wouldn’t be here typing this
Well, I was smarter, but, thankfully, still here.
I was maybe 5 years old when one day I decided for some reason that I have to know how the electricity works "first hand". So I took an electrical plug with a wire from dad's tool box. It had two exposed copper ends. I plugged it in the outlet and while trying to inspect the "electricity" flow I, most likely accidentaly, have completed the circuit with my hand.
Interesting how the experience wasn't painful it's just muscles in your body get tense and you literally can't drop the wire or move at all. Thank god my Dad was around and maybe 10 seconds after I got shocked he pulled the plug. I had no serious injuries: just burns, a bit of shock and a lifelong lesson.
P.S. It was a 220V outlet too. But I'm not sure if it's more dangerous than the US ones.
Then you just wait until somebody enters in.
When the person opens the door you run to them and yell "wait wait wait" while frantically gesturing. After you enter - say quick "thank you" and disappear.