When I was a teenager, my parents owned a toy poodle that was a holy terror! lol
My grandparents had a miniature poodle when I was growing up. She wasn't too bad until she went blind.  
When my parents dog was a baby, he was so mean! He would corner me and he also had a vicious bite for such a little monster! haha 
My grandmother liked to point out that they were the second most intelligent dog breed, but I'm pretty sure that was the standard ones. Hers wasnt mean thankfully.
I think they are thought to be quite intelligent. I wonder if most of them are temperamental or if it's just the toy breeds.
I think all little dogs especially toy breeds like the poodle are temperamental.
I wonder what makes them so edgy! lol  Maybe, it's a sense of insecurity as they realize their size is quite small.
Dog anatomy
Dog anatomy comprises the anatomical studies of the visible parts of the body of a canine. Details of structures vary tremendously from breed to breed, more than in any other animal species, wild or domesticated, as dogs are highly variable in height and weight. The smallest known adult dog was a Yorkshire Terrier that stood only at the shoulder, in length along the head and body, and weighed only . The largest known adult dog was an English Mastiff which weighed and was from the snout to the tail.
age when his parents would play Tupac among others when he was young, he cites "When I was ten or so I bought every Tupac CD. I bought all his music. My parents played him, Nas and Biggie in the car and stuff. I listened to other guys, like Eminem, Jay-Z, Big Pun, O.C., Big L, a lot when I was younger too.". Perry started releasing music around 2014, but it wasn't until he released the video ""KAANCEPTS"