Mr & Mrs

I remember watching an episode of the fantastic television gameshow Mr & Mrs hosted by Derek Batey in the late '70s/early '80s. 

The objective of the show (as I remember it) was to prove that each couple knew more about each other than the other couples. One of the questions that always sticks in my mind, was posed to the wives: "In the morning, which leg does your husband put in his trousers first?"

I've always though that is a really tough question, but I suppose they had a 50% chance of being right.