Eating Hard Food When It Might Make One's Gums Bleed, and Removing Meat Stuck in One's Teeth When Gums Might Bleed;
Does the Concept of Derech Achila (The Way a Person Eats) Apply to the Melacha of Meraked?;
Introduction to the Melacha of Mechabeh (מכבה) (Extinguishing a Fire);