Oxymorons

I actually hear this stuff at the office from time to time.........

Coming from how stuff works:

1. virtual reality

2. original copy

3. old news

4. act naturally

5. pretty ugly

6. living dead

7. jumbo shrimp

8. rolling stop

9. constant variable

10. exact estimate

11. paid volunteers

12. civil war

13. sound of silence

14. clever fool

15. only choice