I have a 60D that I like using in auto mode because it's easy, especially when I hand it to other people to take family group photos or even my kids to take a picture of me and my wife. For some reason, some photos come out very overexposed while indoors with the flash. I don't have this problem outdoors.
What's really weird is that I can take two photos back-to-back and one is perfect while the next one is very problematic or vice versa. Nothing has changed in lighting or the subjects, I'm just pushing the shutter two consecutive times a couple of seconds apart. I don't remember my camera doing this initially. Is something wrong with it, or is something wrong with me?
Any help would be appreciated.