I hesitate to even mention this in case I get flamed, but then I truly deserve to get flamed, so have at it.
Mia wanted to go to the playground this morning (hey, it's only 93, why not?), so I got her and Owen all sunscreened up and packed water and hats and the Ergo for when Owen invariably decided to boycott the stroller and we were all set to go when I realized I had neglected to snag anything for Owen to chew on. Not advisable. So, I assessed the situation: both kids in the garage, Owen strapped securely into the stroller, Mia standing nearby. I decided I could leave them where they were and run into the house to grab a toy.
So I did that. I asked Mia to watch Owen (just to make her feel important, I do realize a three year old is not a reliable babysitter), ran through the kitchen and into the family room to grab some toys, then scooted up to the playroom for some plastic rings to attach the toys to the stroller. I had Mia talking to me all the while, so I felt pretty sure that all was how I left it.
When I returned to the garage, Mia proudly announced that she had helped Mommy by lifting the levers. The levers that are the brakes on the stroller, which were the only thing preventing a gentle shove from sending the stroller and my second born barreling down our very steep driveway and straight into the street.
I would elaborate further on what a fucking idiot I am, but I'm still waiting for my heart to start beating again.