I wonder if the Supreme Court really considered the consequences of this ruling. As I read it they are indicating that the employer is responsible for anything that could happen to an employee while they are at work. What happened to the employees responsibility to take reasonable care for their own H&S. It's well known that when it's icy you could slip and fall or is the real reason the fact that the employer stated "appropriate footwear" without specifying what this meant. Would the man travelling on the Clapham Omnibus know what appropriate footwear would be for icy conditions?
The way this ruling has been presented reminds me of the film "The Man Who Sued God". Surely the weather could be construed as an act of God and if so can an employer really be deemed to be responsible?