In "Meet the Reaper", Billy and Mandy, two neighbor kids, play a game with the Grim Reaper for the soul of a sick hamster. In "Skeletons In the Water Closet", Billy's overprotective mom discovers the Grim Reaper sleeping in her son's room and panic ensues, particularly when Billy's dad doesn't see Grim and is convinced that his wife has cracked.
In "Opposite Day", Grim's patience and sanity are put to the test during a holiday where everything means the reverse of what it normally does. In "Look Alive!", when they turn down Grim's being hired as a swimsuit model, Billy and Mandy try to help by giving him a makeover.