I have a 3 yr old dcg who has been lying lately. Mom says she has been doing it at home too. Dcg will lie and say no when she has pooped her pull up even though I can smell her from a mile away. She will lie about playing with lights even though I just caught her flicking the lights on and off. She will deny pushing another kid and/ or stealing toys. Today when I came out of the washroom, she had plugged in the Christmas tree. She denied it. I explained that I wouldn't get mad but I wanted the truth. She denied it. It took me asking her half a dozen times until she admitted it.
How do I handle this? How do I get her stop lying?