Wife is touched by the knees

There was a case here six months ago. In July, when all sorts of places were opened after the quarantine, my wife and I went to a bar near the house to sit. They met a friend there, he was already sitting alone, having a drink and a snack, and they sat down at his table. My wife is next to him (she likes to inspect everything and keep it under control), and I'm opposite them with my back to the hall. We sat for a while, my wife usually does not drink strong drinks, and then this friend gave her tequila, she drank about 3 servings, and was already a little drunk. I look - there's something wrong under their table... I dug into the phone, pretended to be interested, turned on the camera,and put the phone under the table. I took some photos there. When we went home, my wife said that he touched her knees under the table. About the fact that I have these photos does not know until now, I keep a secret... The photo is in one of my galleries under a password.