Let's talk about what we did behind our parents' backs when we were young.

Look at my 1. When I was a child, I didn't finish my homework. While my mother didn't come back, I had to listen to the sound of high heels outside the door. 2. At home, I secretly painted my mother's lipstick and wore my mother's high heels. My mother said not to have too much contact with male students and go out to play behind their backs. 4. I followed other children to stick bubble gum on other people's keyhole.