During morning rush hour (a near-standstill occasionally broken by brief periods of 10mph movement), I once saw a woman eating a bowl of soup/oatmeal/whatever while steering with her elbows.
It seemed to be a regional norm to eat breakfast in the car because a 20 mile commute generally took 1.5-3 hours and often moved slower than a walking pace, but that was the only time I'd ever seen someone eating food that required a dish and utensil.
Yes, when collaborating with someone who was only familiar with light mode and felt disoriented by the different appearance. I wanted to scream and hiss like a vampire.