Driving under the influence of the of an opiate is dangerous 1: they cause the user to feel they are in a safe place and not care about outside dangers 2: they cause you to become agitated and engage in the road rage 3: they can have the unreliable vision and to see things don't exist

1. They cause the user to feel they are in a safe place and not care about outside dangers

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.