Vivian trips and hurts her ankle on a carelessly left toy by Jerry leaving Lucy in a pickle. She neglected to renew her liability insurance, and now fears Viv will sue her.
Upset that Lucy believes she'd sue over this little mishap, she decides to teach Lucy a lesson. Lucy waits on Viv endlessly. Viv exaggerates her injury and threatens to call her lawyer as she lounges in bed for a week, running Lucy ragged with petty demands.
Special Notes: Vivian's antipathy towards her ex-husband is even funnier because everyone watching is thinking of Fred Mertz as the one she hates so much. This is the last appearance of Charles Lane as Mr. Barnsdahl. The character was written out of the show as Lane had trouble remembering his lines.