If I got paid by Big Olive as a lobbyist I'd at least take a swig. (I believe that lobbyist made a claim about drinking a spoonful.)

Then I'd probably cough and pivot to how to tell the difference between high quality olive oil and what the fraudsters are pushing. I'd celebrate the good work of my good friends at the California Olive Oil Council and many others to address the growing problem of fake olive oils. Let's protect our small olive farmers!

In short: if I instead turned red, started freaking out and stormed out of the interview, it would probably be wise to stay away from olive oil until you figured out exactly what happened there.

Edit: clarification

A spoon is good for your health, a glass will make you run to the toilet if not worse.

It's also very hard to swallow even in modest quantities.

Not surprisingly it was one of the most popular forms of punishment and humiliation fascist blackshirts used.

https://en.wikipedia.org/wiki/Castor_oil#Punishment