Have you ever had to use your pistol to deter a human threat?

This past xmas eve we were heading back to the house from a relatives house about 30 minutes away, one of my kids had to use the bathroom and we were still a good 15 minutes away, but everything was closed as it was 11pm on Christmas eve. We stopped off the interstate in a well lit fast food restaurant. The wife was driving so she stayed in the car with the other kid, while I got the other guy out to go in the grassy area next to the parking lot. a small car creeps from behind the restaurant and I can see at least 2 people in the front seat, but it looked like they were moving really slow. seeing this I put myself between my kid and the car which came to a stop about 15 feet to my back and tucked my shirt behind my pistol(not a judge). I hear a car door open and after what feels like 20 seconds but is probably only 3 I turn around, while my kid is still peeing to look at the car, and a guy has gotten out of the back seat and is standing on the side of the car looking in my direction. his eyes wonder down to my belt, he sees my pistol, his eyes get really big and he jumps in the car and they take off. It turned my wife from a not too crazy about guns liberal to a gun toting conservative almost over night. It was pretty crazy, and I would have drawn my gun if he would have come any closer. It was pretty crazy, but at least the kids and wife were unharmed.