Nessa i don't have any advice (DS is only 6 months old so have all this to look forward to!) but wanted to share a little story. My sister was shopping with my niece and accidently ran into her with the trolley - result was lots of tears, cuddles etc - then all was fine and forgotten...until the next 6 times they went shopping my niece would scream at the top of her lungs "Please don't hit me mummy!" - results was lots of gasps of horror and dirty looks from fellow shoppers. Didn't matter that she meant 'please dont hit me with the trolley'. She sounds a lot like your daughter, in that she remembers everything. My niece eventually just stopped doing it. Good luck with everything - you and your DH sound like wonderful parents x