Answer is social contract
Silicon dioxide is dissolvable in water and has a high melting point because the atoms in the dioxide has a strong bond between them, which requires a lot of energy to break them.
Their attitude/ beliefs would change in order for the discomfort feeling to reduce. So they might make it up by making another decision with a better outcome to make up for the previous poor decision.
By explaining it step by step and by how it will help him heal
A check that has been paid is called a cashiers check