This is a very random one:
Place a paperbag with food on the floor. Have a least one cash register or checkout counter that has 0 paperbags. Assign yourself to any cash register/checkout counter.
Your character will walk over and pick up the paperbag of food and will appear to “place” them inside the empty cash register (whether or not you are assigned to that empty one). This doesn’t actually give you any paperbags in the register, and now your bag of food is gone.
I want a refund on that food.