Yet another article I'm sorry I read....

Sometimes you have to wonder if there is anything valuable enough in human beings to make up for their drawbacks.

Secret documents describing how some monkeys can scream in misery, fear and anger during experiments were produced in the high court yesterday as evidence that the laws intended to protect laboratory animals are being flouted.

[...]

Richard Drabble QC, for the BUAV, told the high court yesterday that the documents contradict the general public perception that animals are well cared for and protected under the Animals (Scientific Procedures) Act 1986.

[...]

Excerpts from Cambridge University internal papers - one of several sites where primate research is carried out - give laboratory technicians and scientists advice on how to deal with problems during and after experiments. Presented in court by the British Union for the Abolition of Vivisection (BUAV), they describe occasions when primates are "screaming, trying to get out of the box, defecating", and state: "This is an angry animal."

Scientists and technicians are advised in the documents to "punish" the bad habits of the monkeys, stating that these bad habits include the normal self-grooming.
  Guardian article

I'd expect any monkey to be angry at being locked in a cage, just for starters.

This is a British report, but somehow I imagine that American (see Guantanamo posts) "scientists" are guilty of the same. And don't let's go into the question of how we can make medical advancements if we don't use primates (and other animals) for research. How about we have human volunteers? They can be paid if you like. If it's so unquestionably important to have medical advancements for humans, then there should be plenty of humans willing to be research subjects.