Who gets sued when an employee screws up?

You’re fighting the hypothetical.

Let’s say a self-employed and insured commercial delivery driver was moonlighting delivering pizzas,

Or let’s say Donald Trump, having been accused during his presidential campaign of insensitivity to the working classes took a job as a pizza delivery driver to see how the other half lives.

Daniel J.H. Greenwood, Hofstra Law School.
Understanding Respondeat Superior

Never let it be said I fought the hypothetical. Especially since there’s no chance that anyone would be omitted, as standard practice. Carry on.

(Can you imagine a reality show with a camera following Donald Trump delivering pizzas?)