James Howell, a tech geek in the UK, made the painful realization that he had 
literally thrown away $9 million when he tossed out his computer hard drive. 

That hard drive stored 7,500 in bitcoins.

read » http://www.forbes.com/sites/kellyphillipserb/2013/11/30/from-treasure-to-trash-man-tosses-out-bitcoin-wallet-on-hard-drive-worth-9-million/