My mom can open a bottle on the car door... what can yours do?

This vacation I crossed a new bridge with my Mom, drinking the beers. I was at the grocery store and was like, "Hey Mom, do you mind if I get some beers?" I know I'm 27, but have never really had alcohol in front of my mom. Anyway, I thought it would be kinda cute to ask her... so I got three beers. The trouble is, we don't have a bottle opener! To my surprise, my Mom apparently knows how to open a bottle on the car door! After all, back in the day, she reminded me, even sodas came in glass bottles!