Conked out at 11:00 but I'm awake now so we'll Unconsciously Mutter:

I say ... and you think ... ?

1. Infiltration::Spy
2. Nice person::Good person
3. Debt::Owe
4. Settle down::for the night
5. Thomas::Doubting
6. Unforgivable::Unpardonable
7. Medicine::Ball, spoonful
8. A year from now::2006
9. Neighbors::Nosy
10. Dripping::Wet