Being electrocuted is something one can get used to! I have a good friend who can take hold of domestic mains (240v/50Hz) and offer an opinion on whether the National Grid is delivering good quality power on any particular day! He was an electrician for many years but - crucially his skin/bodytissue resistance (a genetically endowed trait) was high. A potential difference of 250 volts could be applied across his fingers and because of his natural high resitance this was not enough to pass a lethal current through his body or vital organs (read heart)..
115 volts applied to damp skin on a person with normal conductivity may kill them..
As we used to say when we went through electrician school - 'It's Volts that jolts and mills (Milliamps) that kills' Meaning a big voltage can give you a shock but unless the voltage is sustained and the power source can deliver a sizeable current it won't kill you.
