Roger shows up at his Fred's restaurant and is seated at a table. Later, Roger uses the restaurant's restroom, and he receives an electrical shock from a light switch. Fred says had no idea that the switch had been badly wired, and that it had never shocked anyone before.

However, the switch had been making a buzzing sound for some time, and thought Fred had noticed a faint smoky smell in the restroom before.

Did Fred have a legal duty to warn Roger about the faulty switch?

Yes

No