It’s Time to Take Buffett’s Millionaire Challenge

Warren Buffett and his geeky, bridge-playing sidekick Bill Gates have talked 40 billionaires, including some of the business world's marquee names, into giving half their fortunes to charity.   It's an interesting scenario: If the avuncular Buffett showed up at your house and asked you to donate half your assets, what would you do? Well, I'll tell you exactly what I would do. I'd throw Buffett out. And his little buddy, too. I will do whatever I like with whatever assets I have. Condescending public displays of noblesse oblige don't impress me. They strike me as new-money gauche, like some parvenu dentist who gives a few bucks to the local art museum and then sends a news release about it to the local paper. I…