Cebus Capucinis

He's gonna be my new pool boy.  She leaves for a couple days for some dance festival thing this week, that is when I strike.

She will probably just use him for target practice 

Make up some piece of paper, make it yellow and copy some cryptic symbols from a movie and a warning in English wrapped around said paper.  "If he enters your house, he must not leave!" - "You have been warned.".  Stuff it into something on the monkey and "discover" it.