The Door Test https://www.youtube.com/watch?v=y8p1iG-6d-w
Here's a better video about "the car door test".
https://www.youtube.com/shorts/fH_CDHficv8
Thanks for the post— classic American rite of passage. I married my first wife because of how, on our first date as we returned to my car after a great dinner at a tiny Italian place, I with our leftovers in a small box in my hands, she, after taking her seat, turned and lifted her hands to accept said carton from me, never missing a beat. I was hooked.