...there is a discrepancy about some fact, your dd10 is the one in the family everyone assumes has it right.

...grandpa can't figure out how to fix something around the house, he calls your dd10 to come help him figure it out, and she usually comes up with a solution.

...you almost don't let your kid at age 3 participate in the end of year production because she hadn't been to preschool for 2 weeks and only went 2 days a week before that, and you have never heard her say a single word from any of the songs. But you decide to let her stand up there anyway and she leads all the other kids.