 Katie and Maggie enter . Maggie talks about Pat 's " frozen willies " — novelty ice cubes — as a distressed Jim makes her a drink , and Carol dances with the uninterested Katie . Jim pulls Carol away from Katie , but Carol hits him ; when Carol talks to Katie about becoming her stepmother , Jim shouts at her . Pat stops him , and , after Carol storms out , tells Jim that " he knows " . Katie is distressed , and interrogates Jim as Maggie plunges a knife into the cake . Jim panics , believing Angela is still under the table , but Angela enters from the kitchen , and reveals that she left to buy a real cake — the story that Jim had told to cover her apparent absence . Katie wants to talk to her mother , but chaos ensues when Maggie chokes on an ice cube , which Pat reveals contains a fake spider . Carol enters , her face blackened by Pat 's fake soap , and Pat , reaching for his charging phone to call the emergency services , is electrocuted , his hands wet from the ice bucket . Angela performs the Heimlich maneuver on her mother ; Carol kneels by Pat and shouts for help . The new cake is pushed into Jim 's face by Katie , who then answers the door . The paramedic enters , then begins a striptease for Maggie to the Casualty theme . His performance , it is revealed , was Pat 's present to Maggie . Later , Jim talks to an oblivious Maggie . He sees Angela and Katie come down the stairs with bags . In silence , he watches them leave as Maggie tells him the joke from Pat 's birthday card . 
