When I was about.... 4 or 5
I actually heard my dad say "I never want to pick up my tools with the lawnmower again!"
One time on the way to the store his 70 suburban just died right in the driveway.
Mon said maybe your out of gas... A small confident 3 year old voice beamed from the rear of the vehicle "It shouldn't be... I just filled it up!"
I was pretty smart as a kid though. Once when I was about 2 my dad came home from work and I had put all his car models together.
Then there was the time I helped him wax the van. it was a bright sunny day in july and I started putting on the wax and didn't stop till the whole thing was covered really good.
We won't talk about the time I puff canned my bike yellow in the door of the driveway 10 feet from the midnight blue van...