I'm just amazed the place hasn't gone up in a bright green /blue flash methane explosion. The extraction system must be first class: worms in the basement, overnight snakes, possums at rafter level, place full of squirrels eating nuts all day, pigs in troughs and cash cows everywhere.
One spark from cheap stoggie after a round of the flaming conga line dance could do the trick.
PS> We are having a whip round to buy our leader a box of fat cigars for a 'surprise' present, anyone want to contribute.