I don't have no time for no monkey business

When I got home from work at lunchtime there was a small cardboard box* by the front door. It was wriggling slightly and a muffled sobbing seemed to be coming from it**. I carefully carried it indoors, cut the tape that had been securing it and released a young primate, who seemed to be very relieved to breathe the fresh air. He was taken upstairs and carefully introduced to the rest of the group. He seems a little nervous.

I hope they don't fight.

* Thanks Stu! :D
** May have been my imagination