Conversations I've Never Had With My Mother

As I was on my way home a few minutes ago, I stopped off to get gas. When I walked into the gas station, there was a girl standing at the counter who couldn't have been older than 18, flirting with the attendant and chatting on the phone with her mom, affording me the opportunity to overhear the following cell phone conversation:

Girl on the phone with her mom: Mom, you gotta let me borrow your car tonight to go see Becky.
Mom (I assume this is her response): No.
Girl: Aw, Mom, come on. What if I promise not to drive drunk?

At that point, I looked at the guy behind the counter who is just shaking his head. I have no idea how the conversation ended because by that time, I had my change, so I had no reason to stand around and eavesdrop.

I swear that's a conversation my mom and I have absolutely never had.