Sorry, I did it on purpose!

So, Annabelle is working on what is the difference between making a mistake that you know is not ok and learning from that and making amends and doing something by accident and apologizing for it. As an example she would take a toy right from Max's hands and though she knew it was not ok, she would do it anyway, because she is still 4, but with some help she would give the toy back and make a plan on how she would ask and what she could do while she waited for the toy, but she kept saying, "Sorry Max, it was an accident."
So I explained to her what an accident was, like bumping into someone when you don't see them, etc, but she meant to take the toy, so it was not an accident, but a mistake that she needed to correct. So now we hear, if she does "something" to Max like, take a toy, etc, "Sorry Max, I did it on purpose!"
The thing is she is serious, not being mean or trying to be funny, she means, "oops, I made a mistake, sorry about that." And then she fixes the mistake, like gives him the toy back or tries to trade a toy with him.
I love how earnest she is about being a goood person and sister. I also love this period in her language, she has a huge vocabulary, but still uses words and phrases in interesting ways, like calling long pants, "long-sleeved pants." As she has gotten older she has already lost so many of our favorite words, like "amve-ance" for elephants and "ding-ding," for bycicle, though she is teaching some of them to Max, like how she used to say ice cream, "LLLL!"
So Jack and I will keep saying "long-sleeved pants," and "amve-ance" just so we remember!