There are two primary defenses that are raised in a Florida slip and fall case. The first is that the premises owner did not have knowledge of a defect or foreign substance on the floor. So, for example, if the substance just recently was spilled, and they had no idea that it had been spilled, and someone fell on it, then that's a proper defense in a slip and fall accident. The second most common is that the condition was open and obvious. If the condition was so blatantly obvious that anyone walking across that surface should have seen what they were stepping into, then that's a common defense as to why they may not be liable.