Alright, here is a story: One time a member of my family was showing my vacation pictures on their phone. Swipe, swipe, swipe - beach, hotel, restaurant etc. all very normal stuff. Then suddenly there is a picture there that was clearly intended to be seen only by that family member and their partner. Swipe on to the next picture - a normal one again. Continue on like nothing happened.

Both of us never acknowledge that. I never told that to my friends or family. I am going to take that secret to my (non-internet) grave.