Did I tell you I'm glad my father in law isn't going with us to thanksgiving dinner?
Why, don't you like him?
No, I don't.
It's understandable that being around someone you don't like will cause you to feel uncomfortable. However, you should make an honest effort to work on your relationship with your father-in-law whenever you can. Doing this will earn you respect from your in-laws.
Maybe, but I hope I won't regret it.
All you can do is try and be respectful. You might be pleasantly surprised at the results.