An attitude? Why not?
After all, what would you do if you were abducted by aliens and transported into a strange, new universe away from your home, your family—everything familiar to you? Would it make you happy? Not likely!
Now imagine you're stronger, faster, and more coordinated than every alien species you encounter. Would you start kicking some ass? Of course you would!
This is the story of Human Superiority in the galaxy, a gritty, realistic profile of a young Navy SEAL who doesn't like aliens very much—and he makes them pay for the bad mood he's in.