 FACT: In the opening death scene, the UV tanning lamp is in the  bathtub with the victim, clearly still powered. Ryan comments that  the GFCI (Ground Fault Circuit Interrupter) should have tripped.  Calleigh replies that it did, but not fast enough. The GFCI outlet  is shown in its normal (untripped) condition. When tripped, the red  RESET button clearly pops out. In addition, the GFCI will trip  within 1/60th of a second to prevent just this type of mishap. Bath  salts added to the water would tend to conduct electricity around  the victim, lessening the effect.