Changing nature leads to increased toxicity: Heavy metals tend to be seen by people as helping hands. However, originally stored safely in the earth, when constantly disturbed by being dug out they form into natural combinations with other elements to create compounds such as oxides, or get chemically rearranged by human action into new formations. Having had their "customs" changed, their characters also change and many highly toxic substances appear.
人們將重金屬視為好幫手，但本來在地質中呈安定狀態的重金屬，不斷被翻挖出來後，或與自然界中的物質自然結合，如產生「氧化」，或化學程式被人們重新排列組合；被「易容」之後的重金屬，性格也因此大變，許多急性劇毒因而出現。