Chimpanzees are just like you and me except that they are much stronger, much meaner, more violent, and much more terrifying. Also they have fangs and absolutely no limits. There is a nice bit in an episode of Planet Earth, for instance, showing an adult chimp cheerfully eating the hand of a chimp infant in the aftermath of a raid.
If you value your peace of mind, do not read the incredibly horrific story in Wednesday's NY Times about the chimp in Connecticut that was shot and killed after attacking someone last year. You might think: Oh, I've heard that story. The woman was on Oprah! The headline doesn't sound like the story dwells on anything too disturbing. "After Shooting Chimp, a Police Officer’s Descent." It's about the cop, not the mauling! Well, you would be wrong. So wrong that I am not even going to link to the story, for your protection.
Instead, you can read a conversation that I had about making that mistake.