The practice of providing advice and helpful suggestions to a novice regarding potentially dangerousactivities in the hope that they will heed the advice and not cause hurt or harm to themselves or others.
Practicing harm reduction Keith showed Brittany how to IV drugs. According to him he didn't want the wrong person showing her the wrong way, because he knew she was headstrong.
Reduction of order is a technique in mathematics for solving second-order ordinary differential equations. It is also a technique used in restaurants by math geeks who change their order to an amount less than originally requested.
I went to McDonald's and ordered two Big Macs, but I changed my mind and ordered only one. They didn't like my reduction of order.