My grandmother experienced this issue with her in-laws when she and my grandfather were newly weds. They rented a house next door to my grandfather's parents, also, his brother and sister-in-law lived across the street. My grandmother said it was like “Everybody Loves Raymond" but set in the 1940s!

My grandmother struggled with one specific issue: if she baked a dessert for that evening, her father-in-law would drop in for afternoon tea and eat the whole pie, cake, etc and my grandmother wouldn't have anything left to serve my grandfather when he got home from work and they sat down to supper. She was too nervous and shy to say anything to her father-in-law, so my grandfather concocted a plan for her. He said “lemon pie is Dad's favourite. Make one and let him eat it, but put a quarter’s worth of the sugar in the filling so it will be too tart.”

My grandmother made the pie, her father-in-law smelled it from next door and 'dropped in’ for afternoon tea. The legend goes, he managed to get down most of the pie as though nothing was off about the taste, then as he was leaving, he said “that wasn't your best pie Hazel, you might want to try a different recipe for the next one.”

My grandparents moved after their second child was born to get more distance.