Sexually Transmitted Vengeance.

Finally, we have our revenge.* Nobody messes with humans. Especially not our junk. When we were asleep, in the jungle. And in no way molesting monkeys of any sort. So you hear that you damn dirty apes? We're coming to get ya! It is only a matter of time before we perfect the virus. Don't try and disguise yourselves by wearing hats and monocles, as amusing as that may be. We can tell one bipedal primate from another. Most of the time. Unless they're some kind of minority or something. *It is commonly believed that humans originally contracted HIV from monkeys. How is yet unknown, but sources inside of my head tell me that it happened through inappropriate sexual contact.