As a baby I was born with a pituitary issue which meant my hands and feet were abnormally small. They never grew that large at all. I can run and walk fine and they're not deformed or anything, just tiny. I might have some weird world record for smallest hands and feet on a fully grown adult!
He could be the monster in a climbing based horror franchise.
Born with small feet, he was banished to the mountains where he turned his curse into a means for survival.
Wide shot of a group of hunters following a trail near a rock face
"I thought it was wolves eat'n all them sheep. Couldn't have imagined that small feet kid lived all those years out here alone."
"It's a confounding thought, Emmit, how you think that thing managed?"
"Boy howdy, that's the mystery of it all. Maybe we ought not to know."
Pan up to show small feet guy perched on a narrow rock ledge above. He jumps down, fade to black over hunters screaming.
"This summer, remember to look up."