Dude, I gotta tell you something fun. When I was a little kid, my grandfather rescued one of those tiny monkeys from a school. They kept it as a pet, and for some reason or another the monkey had lost the ability to move one arm.
Now grandpa, being a vet, took this monkey, named it Martin, and began a rehab process of sorts. Daily massages, and slow movements. Keep in mind, Martin was tiny, the smallest of the Amazonian mini monkeys. The ones you took a picture of, are the "big cousins".
Anyways, granda thought up a trick so that Martin would allow him to perform the treatment. He gave Martin Whisky. It worked, it worked amazing well. Martin loved Whisky so much, he then became a drunk.
I must have been 8 years old at this point, Martin must have been living with Grandpa for a decade, maybe a little less, when Martin was stolen from the house. My mom speculates he was lured with alcohol. Ha!
But imagine, a monkey that fits in your shirt pocket drunk all the time, because he keeps on sneaking into your bar and opening the micro bottles.