It is said that a dog is totally unaware of its own size................
We also have a MALE six year old Chihuahua.
He THINKS he is the King of the household.
We also have beagles. My wife will put him into the fenced in Beagle yard when she is out there to watch them. He will try to flirt and mount those female beagles even though he is literally a 1/4 their size/weight.
He also thinks that my wife is HIS property too.
If I come into the kitchen and put my hands on my wife he will come over and growl at ME.
Like get your paws off of her.
Chis are psychos.
The other thing we will do is run the Chis around the yard.
The male Chi loves to run the fence line of the beagles.
They are inside a chain link fenced yard.
The Chis are on the outside.
They run up and down the fence barking at each other.
It is funny and loud.
Which is why we have 12 acres.