Under Texas law, a customer or invitee is owed a duty by businesses to make the premises reasonably safe. In order to prove liability, a trip and fall lawyer must prove that: There existed a concealed unreasonably dangerous condition upon the property; The property owner (or person in control) knew or should have known of the unreasonably dangerous condition upon reasonable inspection; The property owner both failed to remedy the dangerous condition and failed to warn the person who was injured, and; The unreasonably dangerous condition proximately caused the injuries.