Taking Their Place
The daring worker decides to position himself in the most hazardous area to secure the safety of the others. Then two more daring workmen decide to lengthen the snake’s tail. While they were doing this, luck was on their side.
Head And Tail
Because the head is so far away from the tail’s end, the odds of it biting them are small. Especially given how slowly the snake had crawled prior. They don’t want to risk it, so they take additional measures.