Originally Posted by
skunker
Next time just reply with "Promise?"
So funny you should say that, as I used that very line years ago in a similar situation with a delightful southern FA on a US Airways flight.
Seat belt sign went on for turbulence well before landing but I just wasn't going to be able to wait. I popped up and headed for the lav. The FA was putting things away in the galley as I passed through.
She whips her head around and looks at me and says, "Sweetie, the seat belt sign went on -- hurry up, or I'm going to have to spank you."
I replied, "Darlin' is that a promise?" and headed into the lav.
She laughed, I laughed and when I deplaned a while later she gave me a hug and thanked me for making her day.
IMO, the only problem here was the lady in front of the OP who just should have minded her own business.