fuagf -- I'd wager it was over the instant the octopus secured itself with its beak www.royalbcmuseum.bc.ca/school_programs/octopus/images/raa121-beaks.jpg [via http://www.royalbcmuseum.bc.ca/school_programs/octopus/index.html ] marine.alaskapacific.edu/Octopus/specimens/beak25.4kg-PacStar.gif Beak from 25.4 kg Octopus dofleini Collected by the F/V Pacific Star of Hinchinbrook Island, Spring 1996 [ http://marine.alaskapacific.edu/Octopus/specimens/beakocto.html ] at the side of the shark's head