what might be some of the problems that could arise with opening up CANS on Shabbos;
understanding the two views with "דרך לכלוך" (coloring destructively). (Wiping one's hands on a towel from grape juice, blood, pomegranate, colored ices, etc.);
(Temporary Ohel) Movable machitzas. Working with protective gates on the top of stairs. A halachic divider put up in a bedroom;