LMAO MMM- we had similar rules, although we didn't grow up on a farm we grew up in what was a small quiet town with no busy roads nearby. Our effluent pond rule was the river, and the bull paddock rule applied to any paddock that contained livestock. Also we weren't meant to play in the quarry and especially not slide down the mountains of quarried rock (but we did).

Other than that yep, Mum used to give us afternoon tea and say be home for dinner (or lunch at the weekend) and we just kind of knew when it started to get a bit darker in the arvo we best go home lol.