(Spoilers) Haltmann's Demise

SPOILERS FOR EPISODE 11 OF THE CHRISTMAS COMEBACK CRISIS! After the defeat of Haltmann and The SiIva AI by our heroes' hands, Santa chews Haltmann out and gives him a chance to change his ways by joining them in the fight against the Voice. Haltmann seemingly accepts Santa's offer... only for the Voice to execute him with electricity as payback for his betrayal.

Example of:
Heel–Face Door-Slam