What a load of "s.h.i.t." -----Willy I could add more, but its more than I can handle.
Manure: In the 16th and 17th centuries, everything had to be transported by ship and large shipments of manure were common.
Shipped dry, because it weighed a less, once water (at sea) hit it, it not only became heavier, but the process of fermentation began again, and a by-product is methane gas.
Stored below decks in bundles, it would get wet and methane began to build up below decks so when someone came below at night with a lantern, BOOOOM!
After discovering the cause of ythe blow ups, the bundles of manure were always stamped with the term 'Ship High In Transit' on them, so the sailors stowed it high enough off the lower decks to keep water that came into the hold from touching this volatile cargo.
Thus evolved the term ' S.H.I.T ' , (Ship High In Transit) which has come down through the centuries and is in use to this very day..
You probably did not know the true history of this word.
Now, you still do not know the history of the word unless you are aware that it decends from O.E. scitan, from P.Gmc. *skit-, from PIE *skheid- "split, divide, separate." Related to shed (v.) on the notion of "separation" from the body (cf. L. excrementum, from excernere "to separate"). The noun is O.E. scitte "purging;" sense of "excrement" dates from 1585, from the verb.