Salt is added to pineapple in several countries because it neutralizes the acid. These pineapples, not like the ones we have in Europe and the American continent (guessing here), are so acid they can burn your tongue.
Chainsaws - These were originally invented to serve as a surgical instrument for assisting in childbirth. It was used in symphysiotomy, a procedure that widens the pelvis (ouch).
Salt is added to pineapple in several countries because it neutralizes the acid. These pineapples, not like the ones we have in Europe and the American continent (guessing here), are so acid they can burn your tongue.