 Stock currently holds the world record for "Heaviest Vehicle pull by a sword swallower" as of November 26, 2008,as verified by Guinness World Records.He holds the record for "The heaviest vehicle pulled using a hook through the nasal cavity and out of the mouth", The automobile weighed 725.0 kg (1598.35 lb), and Stock's attempt at the record was televised on the 'Lo Show dei Record' in Rome, Italy, on 21 March 2012.He also holds the record for "Most drink can tops torn off with the teeth".