Commercial establishments have a duty to make sure their property is safe for patrons. When the weather turns bad and snow and ice falls, a business must take reasonable steps to make sure that their property is free from hazards when they open for business. Most businesses hire snow removal companies to perform the tasks for them or clear their property themselves. One thing is clear, if you're going to open for business, you have to make sure that the property is in a safe condition.
When you are involved in a slip, trip and fall incident, sometimes it can be difficult to figure out exactly what caused the incident. With seconds, a change in terrain below them, anyone could be sent to the ground with little to no idea as to why they fell. And the fall, just like a car accident, an injury may not become fully apparent until some time after the fact. It's natural for some people to attempt to 'walk-it-off', only to realize minutes, hours, or even days later that you may have been seriously hurt.