saw pit
...that the expressions 'top dog' and 'underdog' may originate with the two sawyers in a saw pit?
...that the expressions '<a class="mw-redirect mw-disambig" href="./Top_dog" id="mwDl0" rel="mw:WikiLink" title="Top dog">top dog</a>' and '<a class="mw-redirect" href="./Underdog_(competition)" id="mwDl4" rel="mw:WikiLink" title="Underdog (competition)">underdog</a>' may originate with the two sawyers in a <b id="mwDl8"><a href="./Saw_pit" id="mwDmA" rel="mw:WikiLink" title="Saw pit">saw pit</a></b>?