<human>: Can you provide a brief rundown of the text in within 3 sentences?

Throwaway account because this is just sad to admit.

So about ten years ago, late October, and my mom was planing on taking me and my little sister (seven and three respectfully) to the park before it started getting cold. Me, being every seven year old ever, was excited. I even helped my little sister get dressed for it.

My mom told me to help my little sister into her car seat, since we would be leaving in a few minutes. What I didn't know was that the home phone was called the moment I left the house, and mom got distracted by it.

What my mom didn't know is that I knew how to buckle my little sister into her carseat. I guess she thought we would play in the yard for a while as we waited. Nope, I wanted to go to the park,
so I helped my little sister into the seat, buckled her up, and shut the door. I decided to wait for my mom outside of the car, listening to some music on my older sister's IPod.

I should aslo mention, that I have ADHD really bad. So I was really getting into these songs on it and started running our yard (we lived in an suburban area), dancing and singing to the music that was playing for what seemed like a few minutes and was having the time of my life. What stopped me, was my mother screaming.

My little sister was still in the car. I look at the Ipod. It's been thirty minutes. My little sister was in a black car with no A/C in mid-70 degree weather for thirty minutes. She's was still alive, thankfully, but redfaced and crying.

"Crud," my innocent mind thought.

Suffice to say that I didn't leave the house for a while, let alone to go to the park.
<bot>: Me and my sister were going to the park, put my sister in her carseat, left her there for thirty minutes, mom saved her from my ignorance, got grounded for a month.