Daphne Guinness Uses What For Lipstick!?

Leave it to Daphne Guinness to use something other than lipstick on her lips.
In a recent interview the beer heiress revealed:

“Yesterday I was using nail polish as lipstick. It’s just experiment after experiment. I’ll mix one with another one to try to find the ones that I like.”

Umm is that even safe? And how on earth does she get it off?
[Image via Flashpoint/WENN.]