Warren Buffett auctioned off a wallet containing a stock tip for $210,000 in 1999

Financial investor Warren Buffett is acknowledged during an announcement ceremony at Northwestern University in Evanston, Illinois, January 28, 2015. REUTERS/Jim Young Warren Buffett raised $210,000 for charity in 1999 by auctioning off a wallet containing a stock tip.The famed investor's 20-year-old wallet also contained a Geico business card and an expired Hooters discount pass, according to The Wall Street Journal.The winning bidder offered to share the stock tip with anyone who donated at least $1,000...