Today's companies don't think twice about firing a sick person because they can quadruple the company's health insurance premiums. But it is very easy to become toxic with copper. You take any form of birth control. Copper is the main ingredient in all forms of birth control other than abstinence. You eat foods that are high in copper.
Chief culprits are chocolate, grapes, mushrooms, shrimp, peanut butter and bran flakes.
You swim in pools. Most pool owners use copper algaecides to sanitize the pool. You drink beer or white wine. Both are filtered with copper sulfides. You planted your tomatoes under a high voltage transmission tower.