You should always expect the unexpected.
I'm unexpecting to be butt raped by space lizards, so if I now assign that as expected, what is now unexpected? - winning the lottery twice in a month, great, I'm now expecting that, along with the lizard thing, what else is unexpected, maybe the king and Camilla will turn up with that Kate bird and ask me to lash one up her on will's behalf, so I'm expecting that, ..expecting the unexpected isn't going to work I don't think unless what you're expecting is for feck all to be any different