I decided to be a good boyfriend and brought roses when I picked my girlfriend up for our date. She loved them, put them in a vase and left the vase on the kitchen counter. We went out.
When I dropped her off, her dad was cooler than being cool to me. Couldn’t figure out why — I’d done everything by the book. Skedaddled as quickly as I could, because whatever I had done was clearly the wrong move.
She called me 30 minutes later to explain: her mom had come home, saw the roses, and assumed they were a gift from dad. Was so happy because he never does stuff like that for her, and it was so sweet and romantic. He came home. She thanked him for the thoughtful gesture. He said “what?” A fight ensued.