Michael Robbins almost loses it
If you look carefully in the episode "The Cistern" when Olive comes into the house after using Jack's toilet next door, she says to the family "its most embarrassing, the milkman whistled at me". Stan comes back with the line "he must have thought you were his horse"
Arthur (Michael Robbins) spits out his tea and just briefly you see him struggling to control his laughter.😁 He really loses it there. It was really good to see the fun that these stars had together in these series.
Apparantly Michael had such a great sense of humour and him and Anna Karen used to laugh so much during filming it got the writers annoyed if they were falling behind schedule.
God bless Michael Robbins a much missed actor.