My dad used to work at a classified facility in the USSR that dealt with satellites. Naturally, they had pretty strict security for things going in and out. At the same time, they had ridiculous amounts of overstocked construction materials. My dad's friend told me a story once about how he and my dad got a bundle of copper piping out of there in front of the security guards.
The two of them grabbed the bundle of pipes, and carried it to the front door, then put it right outside of the front entrance to the main building and pointed it at the gate, which was about 40 meters away. They then flipped it over at the far point, and counted "one!". Then again: "two!". And so on. This way they got to the gate, and then simply continued across the street, continuing to count. According to the different versions of the story (it's been told more than once), they either acknowledged the guards, or pretended to be super concerned with the counting. In either case, the piping went into the walls of my dad's friend's apartment shortly after and been there ever since.
P.S.: Apparently, one of the people in their group also managed to sneak out a power drill (not as common back then), by tying it between his legs in a pair of large pants.
The two of them grabbed the bundle of pipes, and carried it to the front door, then put it right outside of the front entrance to the main building and pointed it at the gate, which was about 40 meters away. They then flipped it over at the far point, and counted "one!". Then again: "two!". And so on. This way they got to the gate, and then simply continued across the street, continuing to count. According to the different versions of the story (it's been told more than once), they either acknowledged the guards, or pretended to be super concerned with the counting. In either case, the piping went into the walls of my dad's friend's apartment shortly after and been there ever since.
P.S.: Apparently, one of the people in their group also managed to sneak out a power drill (not as common back then), by tying it between his legs in a pair of large pants.