Aleksashka1987: I buy a UPS, the guys showed it to me: they turned it on the socket, turned it on the UPS, disconnected the UPS from the socket: "Wow, kicked, so it works!" and started packing. I stop them: "I really want to go on the subway". They have eyes of 7 copies, type "And what? Even if it’s on the ski, what’s up to us". Here, UPS once again picked up and it came to them that it is better to turn off the UPS before packing :).