It’s likely that at some point, someone will fall over in your premises, be it a worker or a member of the public, but there are many steps you can take to manage and mitigate the risk of that happening.
At the front of house this can be through ensuring that any spills are cleaned up in a timely manner, wet floor signs are put out, hazardous steps are clearly marked and the flooring is in a good safe condition.
For bars, one key aspect to look out for is a cellar hatch, if you have one. If not properly checked and operated, it can become a big hazard and essentially become a hole in the floor. Cellar hatches should be properly maintained and used infrequently if possible, with it being well-lit, never left open unattended and in an area with minimal footfall.
At the back of house, this can include putting anti-skid rubber mats near sinks, dishwashers and stoves; and using separate mops and buckets to the front of house to ensure the grease from kitchen spills isn’t brought into the front of house.