Don't ever mention OOP during an interview. I swear it's such an odd topic of contention, you will flat out get passed up for mentioning it in any sort of positive light.
Yet if you employ the paradigm cleanly and in the right context, devs get impressed and start borrowing designs.
Have these functions actually proved useful? I think I've had maybe one fridge failure in my entire lifetime that resulted in a complete loss of contents. And many dumb fridges these days have open door alarms.
No.