dog-fools-his-master

A deaf person had a dog that seemed to bark all
the time, but wasn’t really barking at all.
It seems that the dog, upon realizing the master
were deaf, didn’t want to waste vocal cords by just
barking, so just went through the act of barking but
without just barking!
The deaf master didn’t realize the trickery until
a neighbor pointed it out to him. Disbelieving,
the next time the dog pulled the act, the master placed
the hand under the dog’s throat and realized the
neighbor was right!