I thought that waitress was coming onto me when she kept up with that "Sweet Potato" talk every time she came back to the table.
However, the wife pointed out that I had sweet potatoes in my mustache.
So there goes a great comeback, "Sweet Potato, Therefore I yam", I had thought up, completely wasted.
At least I didn't get the black eye and lecture later. However, I did manage to get completed wasted.