Understanding the Concept of מינו נצוד (a Creature That Is Commonly Trapped for Its Usage) and אין מינו נצוד (Not Commonly Trapped);
Understanding the Difference Between טירחא יתירה (Tircha Yeseira, Major Exertion) and טירחא סתם (Tircha Stam, Minor Exertion) on Shabbos;