February 17, 2010, William Dull boarded Singapore Airlines (SIA) Flight SQ377 from Barcelona, Spain to Singapore the Australian, 26, became intoxicated enough that the flight crew stopped serving him alcohol. When asking nicely didn't have the desired effect, Dull allegedly began belligerently pacing up and down the aisle, gesticulating wildly and being rude and crude to crew and passengers alike. One passenger filmed the entire incident. One passenger filmed the entire incident.
Finally, Dull reportedly threatened kill everyone aboard by opening the emergency hatch. At this point the crew and passengers stopped trying to reason with him and subdued him instead. The other passengers cheered.