From what I understand about electricity, it would be the amps flowing through your heart not through the circuit of which you touch. If I have a 2 amp circuit on a nine volt battery, it would not kill me because there is only 9 volts. Ohm's law says this will be drastically reduced by the immense resistance of my body. The amperes through my heart will be much less then 100 milli amperes. Am I right or is there something I am forgetting? I apologize for not shaping this post up better, class is almost over.