Top 35 Oxymoron's:

35. Government worker
34. Legally drunk
33. Exact estimate
32. Act naturally
31. Found missing
30. Resident alien
29. Genuine imitation
28. Airline Food
27. Good grief
26. Government organization
25. Sanitary landfill
24. Alone together
23. Small crowd
22. Business ethics
21. Soft rock
20. Butt Head
19. Military Intelligence
18. Sweet sorrow
17. Rural Metro (ambulance service)
16. "Now, then ..."
15. Passive aggression
14. Clearly misunderstood
13. Peace force
12. Extinct Life
11. Plastic glasses
10. Terribly pleased
9. Computer security
8. Political science
7. Tight slacks
6. Definite maybe
5. Pretty ugly
4. Rap music
3. Working vacation
2. Religious tolerance

And the number one Oxymoron....

1. Microsoft Works