Chukas Akum: Acting in Ways That Are Similar To The Nations of the World (Thanksgiving Celebrations, Caps and Gowns at Graduations, Styles of Dress, Red Strings)
Accepting Shabbos When Lighting Candles, When One May Stipulate NOT to Accept Shabbos When Lighting Candles, Accepting Shabbos at the Same Time as the Community
Asking a Jew To Do a Forbidden Melacha For You On Yom Tov Sheini, During Tosefes Shabbos, Carrying in an Eiruv You Don't Use, Opening Bottles You Don't Open