Big caps even if discharged are dangerous unless you keep them shorted (wrap some wire around the terminals). Thanks to dielectric absorption, a cap that has m

Big caps even if discharged are dangerous unless you keep them shorted (wrap some wire around the terminals). Thanks to dielectric absorption, a cap that has maintained a charge for a decent amount of time cannot be fully discharged easily, as it will recover 1-15% of its total voltage to zap you later.