I was missing for 8 hours after my very first day of 1st grade, and mobilized the entire police force of the rural town where I grew up.
Before I was old enough for school, my (single) mom used to drop me off at a daycare place every day and pick me up every evening. This was in 1986, so way before cell phones or pagers were common.
When I got old enough for first grade, my mom took me out of day care because it was expensive and school would be my day care now.
My school was brand new, my first day would also be the first day the school was open. It was also the principal's first day as a principal and my teacher's first day as a full time teacher.
My mom did all the right things before she put me on the bus. She wrote my bus number in permanent marker on the back of my hand, gave me specific instructions and made me repeat them back to her, put all of her contact information in my pockets, etc.
The first day at school was perfectly normal: I wrote ABCs, drew pictures with crayons, etc. Just like in daycare. My only specific memory was the cafeteria staff bring our lunches to us in the classroom, because the construction on the cafeteria wasn't complete yet.
School gets out and I head to the buses, staring dutifully at the bus number written on my hand ... but, the after-school pickup van from the daycare we used to attend was also there. The staffer from the daycare recognized me as I was walking by and called out "hey Anschauung! We're over here. Come on, were about to leave!". I guess she didn't know or didn't remember that my mom had taken me out of daycare. Anyhow, this lady was a known adult authority figure, so I assumed plans had changed and I got on the bus.
Three stories happening at this point:
Story 1: Six-year-old me had the best day at daycare ever. All my old friends were there, we talked about our first day at school, we played and played and played and seemed to last forever. Even after all my friends mommies picked them up and I was the only one left, I had all the toys to myself. I was sooooo confused when my mom finally arrived crying, bawling like I'd never seen her before.
Story 2: My mom gets off work and waits at my bus stop ... I don't get off the bus. She calls the school and they mobilize the whole staff to look for me (maybe I'm hiding in a bathroom?) ... they don't find me. Hours have passed and she's in full freak-out mode now ... she calls the police. The police start searching the fields and farms near the school ... still no Anschauung.
They bring in more officers and more officers until pretty much the entire police force of this tiny town is looking for me. Meanwhile, my principal and my teacher are having the worst day of their lives ... how could they lose a fucking six-year-old on their very first day?!
All the searching turns up nothing and it's past midnight now, so some poor officer had to tell my mom "Ma'am, you should go home. We'll keep looking all night but we won't be able to find much until the morning". My mom goes home thinking her baby is probably dead, and arrives home to find her answering machine full.
Story 3: "It's 2 hours past closing time, and this kid's mom still hasn't picked him up" "Didn't she cancel her service last week? Why is he even here?" "Call her again." "Her answering machine is full" "Fuck, we better be getting overtime for this".
So ... yeah. I managed to upset an entire school system and traumatize my mom on my first day of school. I still refuse to accept responsibility. I was just doing what the growups told me.