Wow this thread ended up much more popular than I thought it would.
She is in a lot of pain but thats to be expected because of the fracture, but thanks for the support those of you who gave it
I guess her loosing 3 days pay will be a little annoying but she has gone into work today to see if there are any light duties she can be getting on with for the next few weeks, so we will have to see about that.
Personally i'm not really into taking people to the cleaners, however this is not some small corner shop it is quite a large chain of stores, and the one thing that annoyed me is why did they decide to clean the floor at probably the shops busiest time of the day? - it wasn't as if something had spilt, they were doing the entire floor.
Also just to clear a couple of things up, she did see the sign, but it wasn't until after the fall, and as said it was facing the opposite way, and it was one sided. Also the cleaner had gone out to empty his bucket, and so she wasn't aware anyone was cleaning there at all.
After all is said and done I just hope her elbow is better soon, it was an unfortunate accident, but the shop really didn't go out of there way to make it obvious that the floor was slippy - though she did say the staff were as nice about it as they could be.