A landlord might not have someone to fix a broken stair immediately after it breaks. If store employees clean up a spill, it leaves a wet and slippery floor, which presents another hazard until it completely dries. While the hazardous condition persists, the business or property owner should clearly warn any visitors that there is a hazardous condition so they can use caution.
When someone cannot address a hazard right away and fails to warn of the danger properly, they should be responsible for any slip or trip and falls that result.