OS X Server Don't log in to the server with a network user's account - Apple Support with servers
OSHA Construction eTool: Electrical Incidents - How Electrical Current Affects the Human Body illiamperes) Probable Effect on Human Body 1 mA Perception level. Slight tingling sensation. Still dangerous under certain conditions. 5mA Slight shock felt; not painful but disturbing. Average individual can let go. However, strong involuntary reactions to shocks in this range may lead to injuries. 6mA - 16mA Painful shock, begin to lose muscular control. Commonly referred to as the freezing current or "let-go" range. 17mA - 99mA Extreme pain, respiratory arrest, severe muscular contractions. Individual cannot let go. Death is possible. 100mA - 2000mA Ventricular fibrillation (uneven, uncoordinated pumping of the heart.) Muscular contraction and nerve damage begins to occur. Death is likely. > 2,000mA with electrical_safety