Lost wallet containing thousands of BTC because... accidentally threw away hard drive
Lost by: James Howells – United Kingdom
This person mined about 8,000 BTC from 2009 to 2010. However, he accidentally threw away the hard drive containing the private key in the trash while cleaning his house.
Current value: approximately 480 million USD
James once offered to pay the local government to search the landfill for the hard drive – but was refused due to environmental reasons.