“Cave Johnson here. Fact: the key to any successful cooperative test is trust. And as our data clearly shows, humans, cannot be trusted. The solution? Robots!”
"An update: It turns out the robots learned how to lie and can no longer be trusted. They tried to take over the testing mainframe and I'll be damned if I let them get their hands on my equipment! So I sent in a couple of interns to take care of it. Go earn those recommendations! I told them.
"Anyway, it's back to humans. This time new and upgraded with our state-of-the-art Aperture brain chips. The boys out-did themselves this time, increases testing compliance by 150%! Let's see those humans just try to lie now!"