putting in and taking out a extra piece of the table; removing rust from a utensil; an adult playing with a child Lego, fixing...
Introduction to the Concept of עובדא דחול (Uvda d'Chol) in Relation to the Melacha of M'AMER;
Removing Dead Skin, Using a Nail Clipper, and Using a Non-Jew to Cut Nails;