How to use "fragile" in a sentence

As the room grew warm again, the doorknobs and the radio casing and the other metal objects quickly shed their fragile skins of ice, leaving shallow puddles on furniture and damp spots in the carpet

He was a rag doll with only meager scraps of stuffing, a fragile and timorous creature, nothing whatsoever like the happy, vibrant, active boy that he had once been