well my wife use to say " i don't care who primes the pump, as long as i get to draw the water. she also said "do you own window shopping, just don't bring home any free samples home" in other words what she was saying is when i see something that gets me "in the mood" come home and take care of business. i drove a truck for 38 years and i always abided by those sayings, plus i didn't want to come home with anything i didn't leave with.
It means as far as i can understand it is that they dont care what you do out all day as long as you are home to eat together. Playing outside and doing stuff gets you the appetite. So do whatever you want to outside but come home to eat.