THE DOGGIE THAT DIDN'T WOOF

It's hard being a doggie that doesn't woof 
Downright difficult and most definitely tough
All the other doggies do it night and day
Why this doggie can't I will try and say 

Grew from a pup and never let out a yelp
His owners didn't bother asking for help 
Now fully grown no woof can be heard 
Certainly won't frighten any man or bird

The owners decided to take him to the vet
Prescribed some doggie tablets I would bet
The tablets prescribed soon left their mark
For this doggie can now happily woof and bark