You also won't want to insult or bore him or her, so stay away from clothing (which requires you to guess your boss' size), politically oriented or religious gifts, money, personal care products or "adult" items.

FORBES: Careers

Ours is a professional, disciplined fighting force, and the assertion that a diverse military would lack order and discipline is, as Rep. Patrick Murphy, an Iraq War veteran, has said, "an insult" to him and the entire U.S. military.

CNN: Commentary: Allow gays to serve openly in military

If there is one sure-fire way to insult an Australian, it is to mistake him for an American - especially where his war record is concerned.

BBC: Questions over Blair's Commons blunders

Alexander ignored their complaints and then faced the ultimate insult to a commander, a mutiny: His army forced him to turn around.

FORBES: Why Rupert Murdoch Will Survive And Thrive Again