My answer would be YES they are

I have never had a dog so challenging nor did I ever think dog's were! That is before I got
Buddy. Reading books about Yorkie's did not prepare me for his
personality and his challenge to be Alpha. Actually I never even
knew about the word Alpha

I have had dogs in the past and they
were loving family pet's. Never gave me a problem for the 16 & 17 years
they were family member's. An 86lb GS and a 22lb terrier.
Then along came this little 6lb Yorkie(14wks) who within 3months tried to rule
the roost, so to speak.

I actually thought something was wrong with
his brain at first. I didn't find YT until he was around two yrs old so I
was blind and doing research on the internet about aggression which
is what I thought he had. Actually he did have aggression as he got
older but I found out also that he didn't want to be babied he wanted
a leader. At my age a leader is not what I wanted to be. I have been
leading three kids into maturity and now I wanted a rest.

The last
laugh was on me because now I had the biggest challenge of all.
A Yorkie

. With lot's of training, patience and love we got threw it all.
Today Buddy is a wonderful, friendly, loving campanion but I was
clueless as to the challenge they can give you.
I can't be the only one with a Yorkie who gave me a run for my money.
Fess up, did you think you got more than you bargained for?