Try this tactic on small kids, they might believe you. My older cousin's two year old did and it brought a smile to her wee face as well as mine. It got me thinking, maybe Sam told little Chrissie the same thing as I told my cousin's toddler.
The light orb was back again, darting about the ceiling of the motel room. Chrissie was sitting crossed legged on the bed, her large green eyes fixed on the light orb, head cocked to one side in curiosity and wonder. She wrinkled her nose.
"What is dat?" asked the inquisitive four year old, dressed in her best yet aging overalls.
"What's what?" responded Sam, as he flicked through the TV channels.
Chrissie pointed at the light "Dat!"
Sam glanced up and frowned. Then he realised, it was the sun reflecting on his wrist watch. The cogs and wheels turned in the mind of the twelve year old. It was just a light orb after all but something told him to say otherwise. He grinned.
"It's a fairy" he said, switching off the TV and wandered over to his baby sister.
"A fairy?" exclaimed Chrissie, jaw dropping. "Really?"
"Yeah," nodded Sam, sitting beside her . "Can you see her?"
Chrissie beamed "Uh huh. She's weally tiny. Fairies has wings. Der magic."
Sam laughed. The rest of the day was spent in Chrissie following the light orb and trying to "catch" the fairy. As dusk fell, the light orb vanished. Chrissie's small rounded face fell.
"Where'd the fairy go Sammy?" questioned the infant sadly, a pout on her face.
"Uh, the fairy only comes out when the sun's out you see" he stated.
"Where'd she live?" wondered Chrissie.
Sam racked his brains and delved into his jean pockets. A smile returned to his face.
"In my pocket" added Sam.
Years later when Chrissie was older, her brothers would tease her whenever they got a reflection shining from their watches.
"Look Chris," they'd say laughing. "The fairy's back."
"Shut up" she would retort with a roll of her eyes.