Recently 3 yr old DD has started hitting me when she doesn't want to do something, e.g. when I tell her it is time to leave the park she shouts no and hits me, in a kind of flappy-armed way. It doesn't hurt but as she means to do it and to be aggressive I tell her 'no hitting' and we leave the playground immediately (no 'one last slides' etc).
Now, my dilemma is that her and DP have a teasy way of playing with each other. He teases her about something e.g. calling her a pet name, and she responds by shouting 'you're being a tease' and hitting him in a similar way, all accompanied by giggles.
He's not keen on us telling her not to hit him in this instance - he enjoys the playfighting, whereas I think it would be simpler to have zero-tolerance on hitting.
What do you guys think? Can a typical 3 yr-old tell the difference? (I'm not sure, and while I am sure I can teach her not to hit me I dread the thought of her hitting friends or a grandparent because it's okay to hit daddy).