Reopening a Hole in the Ground That Was There from Before Shabbos;
מבטל כלי מהיכנו (nullifying a vessel from its normal usage). Putting a כלי (utensil/vessel) under candles to catch oil, to catch the candle and...
Chickens That Are Set Aside for Kaparot: Putting Them Back in the Coop. A Bear Roaming Around. Dealing with a Child Who Has Lice;