It was from Hydrogen Sulfide in the ballast of the ship
Toxic gas leak during dismantling of a shipyard in Bangladesh kills several workers.
And there were many wailings and gnashings of teeth, for Dadum had forgotten to tend the curry, and it tasted like shit, and many men did shit their pants.
Oooh right that was the lever too release the gas?
I'll know for next time..
These men get paid $45 a week, and their boss charges tourists $200 per person for a tour of the site.