I watched a woman fighting with this monkey a few minutes before I took this picture. She was standing by this brick wall catching her breath and the monkey came up and started helping himself to the contents of her plastic bag. When her friend pointed out she was being robbed she turned on the monkey with, one assumes, the intention of retrieving her lost belongings. The monkey scampered away but that didn't stop her from taking a couple swings at him with her plastic bag. She missed and in the end didn't get her things back either, he passed them on to the other members of his troupe and it took him a while to return to the wall from his perch in a tree.
Fuji X-T1, Fujinon 35/f1.4R
35mm, f1.4, 1/1200 sec @ 200 ISO