I met a colleague. My children always come to my office to play with my computer, but when they don't play with her, they tell her to leave, and they are angry with me and make trouble without reason.

You can communicate with your child's parents and let him discipline you. But one thing, in fact, you need to think about it. Why does he always come to you to play your computer instead of playing other people's computers elsewhere? Is it because he likes you very much? Or is there another reason? You said it was your colleague. Is it your boss?