Insurance, Liability, and Handyman replacing bath vanity light

[Curt Bixel]

I tried posting a similar question in the landlord forum, but I didn't get a response that really spoke to the legal/liability issues with electrical work.

I know I need a licensed electrician to do any work in the main panel to avoid a liability issue.  I also know I can have a handyman replace a lightbulb without causing liability issues or causing any concern for my insurance company.

What I am hoping to learn here is a bit more about where the liability cutoff might be between work that can be done by a handyman and work that requires a licensed electrician. 

Is it O.K. liability wise, to have a handyman:

1. Replace a bathroom light fixture.
2. Replace a ceiling fan.
3. Replace a switch.
4. Replace an outlet.
5. Replace a standard screw in lightbulb.
6. Repair a loose outlet box.