[me283]

Many years ago, dried manure was shipped as a kind of commodity. The problem was that if the sea became choppy or the waves were high, sea water would often get into the hold. This salt water, when mixed with the dried, packed manure, would cause gas creation (methane I think?), which was highly flammable. To combat this, the manure had to be stored higher up in the hold, to avoid it from mixing in the water that sloshed around on the floor. The bales were thuse marked "Ship High In Transit", which was abbreviated to...