Silky Terrier Question

My 7 yr old silky is the same way. What helped in my situation was training. As soon as I saw signs I would say sit or down and that quickly took his mind off what he was fixated on causing the aggression. Also they can get aggressive when they have too much energy or are bored. I run about 5 miles with him a day and that has changed his attitude alot. I hope this helped a bit.

A silky is a terrier, they are supposed to be aggressive as they were bred to be a varmit dog. He is acting normal for his breed. Can you "correct" him for doing something that comes naturally? Yes, but you will be about as successful as "correcting" your child for breathing. You might slow him down, but you won't stop this agressive behavior without breaking his spirit. One way to train puppies is to put several pennies in an empty soda can and tape the top shut. The moment they display a negative behavior, shake the can vigorously (which will startle him) and tell him "no". This is GREAT for training puppies, I have my doubts that it will change an adult dogs behavior though.