Okay, I have two from my daughter when she was young.

1)One time, I was tucking my DD25 into bed when she was 4. I was telling her how much I loved her. She started crying. I asked her what was wrong.
She said, "I want to go back by God." I then started crying and begging her not to leave me. She didn't and it's been a wonderful journey with an awesome young woman.

2)Another time, DD was about 3 or 4 and I was tucking her in (why does this always happen when I tuck her in?) and she grabbed my arms and said, ''I was your mother!" I said, "What?" She repeated the line...I said, "Oh, okay honey..." freaked me out!! What 4 year old says things like that?