DSD 17.5 arrived home from school, 2 hours before DS & put already cooked sausages on plate onto a piece of bread (bread already on a plate) and some frozen chips in oven. In return DS (14) was told by DP to: clear & tidy the kitchen, bread, sauce, tray, left over sausages (all just left) unstack the full dishwasher and then restack (sink full of dishes) and wipe all surface because DSD had 'made dinner'. Aibu in thinking this is not fair?