Very profound. If the power source will only deliver a small amperage (mA) even a high voltage will not kill.
This may be a bit misleading as such, and as some are interested in electricity as a means of sexual stimulation, let me add a bit of information.
Already relatively small voltages can kill, and the higher the voltage, the higher the likelihood that this happens.
The reason why Tasers (most of the time) don't kill comes from the fact that the "power source" cannot maintain the high voltage as soon as contact has been made and that the pulses are very short, due to the fact that tasers are not able to
maintain that high voltage!
The better analogy to understand electricity:
Voltage = water pressure
Current = water quantity flowing per second
Resistance = diameter of the tube
Capacity = size of the tank that is feeding
This translates nicely to the laws of electricity:
High water pressure (Voltage) through a small pipe (high resistance) = low current (Amperage)
High water pressure from a low capacity tank though a large pipe = very short jet of water
etc...
So, in this Analogy, a Taser would be a relatively small cup of water placed at substantial altitude above.
Released, the water comes at high pressure, but in so little quantity that it will be over before damage is made.
The current is limited by the resistance of the body, typically 1kOhm, but because the cup (Capacity) is so small, the pulses are so short that they (normally) don't kill.
Initially I said "small voltages can kill". Actually as little as 10 Milliamperes can stop the heart! At 1 Kilo-Ohms that translates to as little as 10V, with a lot of bad luck (= signal form, current path over the heart, sufficient duration).
Normally it does take much more however.
To stay with the Tasers, for a very short moment the current is exceeding those 10mA by far, but it's too short!