I used to love watching Crimewatch as a kid, but I knew that when it ended I would be feeling a bit scared. But then he had to say at the end of every episode, sleep tight and don't have nightmares.
I would turn every light on upstairs as I was scared someone would be up there and I wouldn't go to sleep without my light on. I would be fine for the rest of the month and then I would watch the next episode. My mum must have realised that it shit me up, but still let me go through the trauma every month.