@Evowizard25  
With a knife, that is how you get dragons Cale armor after all.
 
But in all seriousness, Garble is a young dragon, so scales wouldn’t be that strong. And even if they were, they have developed certain way of forging to create steel that is able to pierce a dragon’s hide.

@Background Pony #833C  
How would he skin a dragon with his claws? In mythology alone, dragon hide is so tough that you need specialized weapons to take them down, not to mention their thick muscles.
 
Their toughness is shown in the show as well. Heck, they can survive bathing in lava.
 
Basically, one dead werewolf.

From the Source:
 
“I’m not here to waste my time with you, I’m getting paid a bunch jewels to smack ponies around, not some mangy hound,” Garble continued.  
“Really?” Foxtrot snapped closing the gap so now his chest bumped against the red dragon’s. Foxtrot stood tall, rising onto his tip toes to even out his height with Garble.“Cuz I’ll put you in the ground right now for free,” the wolf seethed.  
“Pick a bone, wolf,” the dragon snorted, superheated breath flaring out of his nostrils that stung Foxtrot’s face, “I’ll break it and leave you crying in front of your friends, no charge.”  
“What are you? Four hundred? They let you outta the nest that early?” Foxtrot snarled, “how ‘bout I skin you and turn you into a belt!”

A wolf can act as tough as he wants, but he’s still just a wild dog.  
Nothing for a dragon, even for an adolescent one who’s barely taller than a baby one.

The wolf reminds me of
 

Go Garble!

dat cover tho