What would you have done in this situation?
I would've quietly asked them if they could tone it down a bit. If for some reason he approached me and my date and threatened me, I would hit him with the line I usually give guys who try to start things with me: "You can try."
I have a habit of observing my surroundings wherever I am in case of a fight. Though I am trained for MMA fighting, this would be a street brawl, and I'd imagine his buddies would try to get in it. I would use the environment to the best of my advantage in this case.
Has something like this ever happened to you?
Growing up, I was always a pretty heavy kid, so I got picked on a lot and had to defend myself several times. Sometimes I'd win, other times... a few of them would walk away hurting at least haha. In high school, I was 6'6" and over 425 lbs., but I still had some muscle and was surprisingly fast for my size. Was in a few fights, but no situations like this.
Since I've dropped the weight (over 200 lbs.) and put on a crapload of muscle, I tend to be more intimidating these days. I was out on a date once and some kids were loud, but when I asked them if they could be a bit quieter, they apologized and things were fine.
How far in/at one point would you have done something?
When the kid came to the table is when I would've geared up for something, and especially when he waved his hand in the woman's face.