These type of things never happen to me! A 18-year-old Dane Gillespie became an overnight billionaire due to a banking error! Dane went to cash a check for $8,900 from his grandma! DAMN Grandma gave him $8,900! Anyway his bank account gave him $8.9 million instead! The bank noticed the mistake a few hours later and issued a correction. At least Dane was a millionaire for a little while.