MythBusters: Crimes and Myth-Demeanors 1
Ventilation system climbing: Jamie tries using magnets, while Adam tries a suction cup system. In the end, they're able to make it through the shaft, but it sounds like someone hammering on the vent with a sledgehammer -- not so covert. Though they make it through, it's just too loud of an approach. BUSTED!
Laser alarm bypass: This is a pretty absurd myth to attempt, since laser security systems use an infrared beam. So blowing powder over the beams isn't going to show you anything. The MythBusters mock up a Hollywood-like system using laser pointers (with visible light) to attempt the tricks, though blowing powder over the beams is actually enough to trigger them! They also attempt to use night vision goggles, which show nothing, though the beams do slightly appear if the powder is blown over them (but again, the powder triggers the alarm). A laster bypass system works somewhat, though again it's nothing that's practical at all. BUSTED.
Getting through a glass door undetected: Is it possible to cut a circle into a glass window or door and suction-cup that circle out as to not disturb the rest of the door? Well, the MB's aren't able to do it, though I just have a strange feeling there's got to be a way to do it. Tapping a hole in the glass triggers the alarm, so they try drilling a hole through the door, which winds up shattering it. The shattered door doesn't trigger the alarm, so they just pick out pieces from the door, enough to get their hand through, and open the latch that way. Still, this is BUSTED.
Pressure switch bypass: Can you bypass a pressure switch, one that a piece of art is sitting on, with a simple piece of gum? Actually, they're able to do this with a few tries, though in the real world you won't get more than one try. They don't actually say if this was busted or not, but I think it is.
Cracking a safe: Can you crack a safe with a stethoscope? Nope, Adam doesn't hear a thing. How about drilling a hole into the side of the safe? Actually yes, Adam's able to do that and reach a scope in to see the tumblers and opens the safe. However, he does all of this in 40 minutes ... on a 5-minute safe. Plausible, perhaps?
For one final stunt, just for fun, Adam scales a 20+ story building with his suction cup system. Unfortunately he only makes it about five stories or so before he poops out and calls it quits. Plausible, but impractical.
Quote of the episode:
Adam: "Why, Thor the god of thunder is trying to enter my building!"