Plot summary
Mel's mother, Monica ( Rita Rudner ), has come to visit and it is clear that she does not have a great relationship with Mel or her grandchildren, as she always criticizes everyone. Joe has a talk with her and accidentally convinces her to divorce Mel's father, who has been cheating on her with a much younger woman. Not wanting to participate in gym class, Lennox goes along with her teacher's ( Julie Brown ) assumption that she is pregnant, which gets out of hand.
Credits
Adapted from Wikipedia contributors, List of Melissa & Joey episodes. HTML formatting and reference markers removed.