Under Washington law a store owner is normally not responsible for a customer’s slip and fall injuries due to a temporarily unsafe condition such as a liquid spill unless the unsafe condition is brought to the store owner’s attention or substantial time has elapsed so that the store owner should have discovered the unsafe condition and the store owner took no steps to clean up the unsafe condition.  However if the customer’s slip and fall injuries occurred in the self service area of a store, where the unsafe condition is expected, such as liquid spills near self service soda pop dispensers, then the injured customer need not show the store owner had or should have had notice of the unsafe condition.