Oxymorons

Act naturally
Found missing
Resident alien
Advanced BASIC
Genuine imitation
Airline Food
Same difference
Almost exactly
Government organization
Alone together
Silent scream
American history
Living dead
Business ethics
Butt Head
Military Intelligence
Software documentation
Sweet sorrow
Childproof
"Now, then ..."
Synthetic natural gas
Passive aggression
Taped live
Clearly misunderstood
Peace force
Computer jock
Plastic glasses
Terribly pleased
Tight slacks
Definite maybe
Pretty ugly
Working vacation

and finally........Microsoft Works