His mother received a phone call from the school's health tech, informing the mother of her son's injury.
The boy cried and whined and winced from the pain. Worrying that he'd broken his arm, the mother took her son straight away to the doctor.
The kind, old doctor-on-call ordered x-rays. And they revealed----nothing. The boy had simply sprained his wrist.
Knowing the miracle of the placebo effect, the kind, old doctor-on-call hooked the child up with a fancy black splint and sling. The boy proudly wore them on the last day of school. And for a few days afterwards. The mother was slightly annoyed at the attention the son was seeking and getting from his "injury."