So other half is not a car person outside of they like to admire cars and drive but knowing the mechanical aspect is about zero. We typically take my car (EV) during weekend driving to save gas so I don't really ride in the GLI too terribly often.
This morning was our first below freezing day and we hop in, other half starts the car and immediately starts revving it to 4500-5000 RPM.
I said "What are you doing, you know thats not good for the engine!" Response was - "Well its cold." I left it at that as its not worth an argument - other half is 100% responsible for all costs/maintenance of the GLI so it is what it is, they can redline it from a cold start as they please. Don't even get me started on the use of the clutch to hold the car at a stoplight, I attempted to educate on that years ago with no luck.
Being a car person with other half not a car person is a tricky balance.