I want to add something I was taught by a friend of mine who is a professional building maintainance supervisor with many years of experience in keeping a modern building system in good working order. He said that an inexperienced person can easily ruin a frost free water faucet on the outside of a building operated with a silcock (or a round knob, for that matter), and he has seen it happen several times. He said that most people automatically assume that a faucet that continues to run or drip is not completely shut off and will attempt to stop the flow by applying more torque to the shutoff knob. To avoid causing damage, you have to understand that the actual valve is not at the knob in a frost free faucet as it is on, say, a bathroom sink faucet. To avoid freezing the pipes, the valve is actually inside the building and separated from the faucet by as much as 12 to 18 inches or more. This means that there is still quite a bit of water between the valve and the faucet after the valve has been completely shut off and this water will drain very slowly due to the lack of water pressure. Most inexperienced people will think the valve is not shut completely and cause damage sometimes requiring replacement of the entire system by trying to force the valve to close after it is already closed. That's why most commercial buildings have silcock systems, not because the building owners are too stingy to let someone have a gallon or two of water, but so only those people who understand the system and will not damage it through simple ignorance can operate it.
So, if in the future, someone gives you permission to get some water from an outside faucet, don't damage their system by trying to force the valve closed. Shut it off, then wait two or three minutes to see if the flow stops on its own before using more muscle. You can also tell if the faucet is frost free by the angle of the knob or silcock key. If the knob is at a 45 or 90 degree angle to the supply pipe, then the valve is almost certainly at the faucet and it should shut off the flow immediately. If the knob goes straight into the pipe, the valve is almost certainly inside the building and it is normal for it to run/drip for a time after shutoff.
I don't watch survival "reality" TV to be educated. I watch it to be entertained. There's a BIG difference.