Maya was in the car seat, in the back.
Melissa was driving, and stopped at a red light next to a store.
Maya notices the store, and formulates a plan.
The following dialog transpires.

Maya: "Mom! Let's get cookies!"
Melissa: "No, honey, we have treats at home."
Maya: "No, Mom, it would be easy! We just get out of the car, go into the store, give them some money, and get the cookies!"
Melissa: "No. We are not getting cookies."
Maya, growling low, under her breath: "You will not defeat me."

Mid to Late 2001, making Maya around 2 years old.
Not bad for a 2 year old.