Recently our 3 year old daughter was introduced to what I call…
“The Spiderman Rule” – with power comes responsibility*.
Basically, with the powers that we allow her to use, like playing in the front yard, comes responsibility, like staying in our yard (it does not have a fence at the front). Not living up to the responsibility means that the power cannot be used. Simple.
I like it because it is short, easy to say and involves a comic character that she likes.
* (Actually, in real life ;), Spiderman lives by the motto “with great power comes great responsibility”)