A liquidated damages clause sets an amount in a contract in the event of a breach. A liquidated damages clause isn't a penalty, though it may sound like one. A penalty is usually disproportionate to the actual harm, and is meant to punish or deter breaching a contract.
Acidic stools can be caused from absorption problems from the diet and foods you eat. Some people have acidic stools as a result of a lactose intolerance.
A blood pH of 6.9, which is only slightly acidic, can induce coma and death. The reason acidosis is more common in our society is mostly due to the typical American diet, which is far too high in acid producing animal products like meat, eggs and dairy, and far too low in alkaline producing foods like fresh vegetables.