: After accidentally eating Axl's toenail trimmings, Frankie temporarily leaves for her mother's house, demanding changes in the Heck household's hygiene and responsibility.

: Sue enters high school with her typical relentless optimism, while Axl is mortified by her presence and plays tricks that earn her numerous tardy slips.

Watch these clips for a look at the most hilarious and memorable moments from Season 3: Most Hilarious Moments From Season 3: Part 1 | The Middle YouTube · ClipZone: Sitcoms Most Hilarious Moments From Season 3: Part 2 | The Middle YouTube · ClipZone: Sitcoms Most Hilarious Moments From Season 3: Part 3 | The Middle YouTube · ClipZone: Sitcoms

: Rated 7.94; features Whoopi Goldberg as Sue finds a kindred spirit in her guidance counselor.

: Rated 7.91; was the series' most-watched episode with 10.16 million viewers.

According to Episode Ninja and IMDb , standout episodes include:

: Frankie and Mike stop nagging the kids to see if they will take self-responsibility.

: Brick prepares for a spelling bee and later takes on a paper route for a veteran newsman, played by guest star Ed Asner . Notable Guest Stars