To frame my question: Someone I know, who is retired and over 70 years old, went to a new health center (baths, jacuzzis, etc.). The floor was very slippery, and had no warning signs or handles. They slipped and severely injured their arm (shattered humerus). The treatment and care are intensive, and traumatic for the patient, who needs to cancel all their plans for the next three months and get in-house help for a long time, as well as psychologic trauma help. The owner of the health center admits that people fall all the time, although no one has ever fallen and injured themselves so severely, and also claims that everything has been certified as safe by an organization.
Could the manager of the health center be liable for this injury (and its consequences for the victim)?
On what legal grounds?
Is the safety of your customers / clients part of the civil code in this particular situation?
This happens in France, under French legislation, and I would need the right Code Pénal and Code du Travail's references.