>>1041632AC in 99% of applications is bound by the MEN system. Doesn't take much to get caught between the active conductor and its return path.
25KV will literally jump, much higher voltage will overcome the body's natural resistance easier, meaning you get that magic 30mA+ across the heart
Current = Voltage / Resistance.
(Higher voltage = Greater current flow)
AC voltage is considered deadly with 30mA across the heart. However with DC this figure is closer to 200mA.
(AC induces fibrillation, DC has to literally stop the heart (Muscle contraction))