https://www.metv.com/stories/an-episode-of-leave-it-to-beaver-was-almost-ruined-by-one-very-sleepy-horse

Maybe he was just horsing around.

Barbara Billingsley once said that she sometimes thought June Cleaver was ''stupid'' (https://www.metv.com/stories/barbara-billingsley-once-said-that-she-sometimes-thought-june-cleaver-was-stupid)

Billingsley also acknowledged that there were times she considered leaving the series.