When I was in college, I was lucky enough to get a job at the San Diego Zoo. It is an awesome place that took very good care of the animals there, and a wonderful place to work. There was an old silver back gorilla named Albert. Albert loved watching the people watch him. He was mellow and enjoyed it for the most part, however, he seemed to get a little upset when a group of idiots did ape imitations in front of him. Pissed him off a bit in fact. He developed a little trick whereby he surreptitiously pooped in his hand and flung it with a quick motion, into the crowd.
He was quite good at it. More than once a visitor was escorted to the security office to have ape poop washed from their hair.
Does that count as an ape attack?