If you are leading a group in a direction no one has gone before then you are blazing a trail. If the race is on a closed established circuit, either road or oval, then you are breaking wind.
The concrete foot bath or “cement overshoes” is a technique the Mob used on people who didn’t pay their debts or protection money. If they didn’t pay they would end up “swimming with the fishies” in “cement overshoes”!
Step-family?