A childhood belief about family

When I was younger my parents would sometimes go out on weekdays, and our older brother would babysit us. To compensate for leaving us alone, my parents would allow us to sleep in their bed. Every time they went out, I thought they would die in a car accident and we'd be left all alone. I would cry my eyes out, covering my face in my Mom's pyjamas, trying to comfort myself with her smell. I would literally cry myself to sleep. Then, later on I would wake up in my own bed, and I'd be relieved, because that meant my dad had carried me to my bed and they were back home. Safe.