I thought it was the opposite: "Current Kills". As I remember, the little shock you get from static electricity is on the order of 10s of thousands of volts while a home outlet with its paltry 120V will kill you instantly if it goes through your heart.
"Current Kills", while technically true, is a gross oversimplification. The amount of DC current that can stop your heart is about half of an amp, yet most people aren't worried about touching the USB cables they use to charge their phone which in many cases they are plugging into a 1 to 2 amp USB charger.
Part of the confusion, is that the chargers or power source doesn't directly create amps, it produces voltage. When we say it's a 48 amp or 72 amp charger, what we are saying is just that it is rated to handle that many amps while still producing within the voltage range that it's designed to operate on. It is the load (in this case the car) that determines how much amps it will draw based on the resistance.
In the case of talking about current killing a person, it is the resistance of your body that determines how much current to draw. It doesn't matter if the power source is rated at 10 amps or 500, or 1000 amps. It is the resistance of your body that ultimately determines the amps base don the voltage of the power source.
For example, your 12 volt car batteries can have cold cranking amp ratings of 1000 amps. This means that they can produce 1000 amps for 30 seconds while not dropping below less than 7.2 volts. If you have a load that can demand those thousands of amps, then the result can be quite impressive (you can melt a screwdriver in a spectacular fashion if you short the terminals with it), but if you put your arm across the same battery terminals, you will barely feel a tingle if anything at all, because your body has higher resistance than a screw driver, and will not be able to actually demand more than a tiny fraction of an amp.
So while current is technically what kills you, the only two things that decide the current are your skin resistance and the voltage supplied by your power source. Because your skin resistance is relatively constant (within reason), then your only other variable you are left to worry about is voltage. You can be fairly sure that you don't need to be to afraid of 12 volts (at least from an electrocution standpoint, though you could burn yourself pretty badly if you are holding a wrench and short the terminals). Once you start getting higher than 50 it could start becoming very uncomfortable or painful, and not too far beyond that, potentially lethal.
When you talk about 10s of thousands of volts of static electricity, that's very different, because although it's very high voltage, it is not sustained. As soon as you discharge it drops straight back down to 0, so it only generates high current for a very tiny fraction of a second. Enough to heat up the air so you have a visible spark, and enough to potentially be painful at the skin surface, but not enough to really be dangerous. It's like touching a very hot pot in the stove, if you touch it very quickly you probably won't get burned.
