What are some of the best ways to politely ask for a seat change on a plane when you're next to someone unpleasant?

Can a society function properly if its leaders no longer feel a sense of shame for their mistakes?
How do you deal with the social and emotional aspects of quitting smoking, especially if it was a big part of your identity?
How can you spot if a guy is truly reliable and will stick by you in tough times, beyond just looking at his appearance and success?
What is the easiest entry point for a burglar that most homeowners completely overlook when securing their property?