Well, I don't know why I am writing this, maybe to remind others about safety, but you can just feel free to laugh and write "what an idiot you are" below.
So I came back home from a walk and my feet were tired of walking in crappy shoes, so I decided to take "feet bath", don't know how to call it in English, basically put your feet in a bowl with hot water to relax. While taking the bath I was repairing some crap with a glue gun. You guessed right. So I put the glue gun on the table to fiddle around with other crap, then bam - glue gun, turned on into 220 V mains falls off the table to the bowl of water where my feet are. Who knows for what reason, but nothing happened - circuit breaker is not turned off, I am not electrocuted, I just pull out my feet and glue gun out of the mains socket.
Have no idea why nothing happened, because that glue gun is absolute cheapest chinese crap, I wonder if it is so well insulated inside, if it is - I would like to send some thankful money to engineer who designed it.
So the moral of the story - don't be a fucking idiot and don't do stupid shit like that, safety first and so on. But really, even very experienced people like to screw safety, seen many factory workers just spitting on every safety aspect. Don't be those guys, and don't be like me for certain.
And while we are at it, if somebody has time to answer some related questions it would be nice:
1) It seems I don't have residual current device(at least I don't see it in this appartment), but if I would have it - does it save from this kind of shit? I guess not, since I am basically in the middle of the circuit or something... don't know much about RCD, would be interesting to know.
2) How the hell it didn't do anything? Is it insulation? How can such a good insulation be in glue gun? Let alone 1$ shit like this. I can do a teardown probably, not now though, too tired.