He 'went over his supervisor's head' to complain about the policy to the company's president. [=he complained about the policy to the company's president rather than his supervisor]
What is the average income 'per capita' in the state? [=what is the average income for people in the state?; how much money does each person in the state earn on average?]
She feels that there is nothing wrong with gambling 'per se', but she thinks that it should be done in moderation.
(..) - You're retarded. Can't you go faster? I can't run in these conditions. - I'm at the maximum. - The maximum... it's way too slow. Nine miles per hour. Suits him? Is miles per hour ok? Is that the best he can do? Can't we get more? - It's the maximum. - It'll do. (..)2011 The Intouchables