John Percival
...that John Percival, when headmaster of Rugby School, gained the nickname "Percival of the knees" because he was concerned about "impurity" and insisted that boys secure their football shorts below the knee with elastic?
...that <b id="mwD6Y"><a href="./John_Percival_(bishop)" id="mwD6c" rel="mw:WikiLink" title="John Percival (bishop)">John Percival</a></b>, when <a class="mw-redirect" href="./Headmaster" id="mwD6g" rel="mw:WikiLink" title="Headmaster">headmaster</a> of <a href="./Rugby_School" id="mwD6k" rel="mw:WikiLink" title="Rugby School">Rugby School</a>, gained the <a href="./Nickname" id="mwD6o" rel="mw:WikiLink" title="Nickname">nickname</a> "Percival of the knees" because he was concerned about "impurity" and insisted that boys secure their <a href="./Association_football" id="mwD6s" rel="mw:WikiLink" title="Association football">football</a> shorts below the knee with elastic?