I'm here to help! In my 25 years of experience, I have yet to photograph this sort of child. However, as a father, I also know that it could certainly happen. First of all, we must remember that prevention is key. Being two (or ten!) steps ahead of our littles allows us to prevent this type of scenario. It's important to make sure the child (and everyone for that matter) gets a good night's sleep, has been fed recently, drinks plenty of water, has bathroom breaks, and lastly, has a low sugar intake before the session. We need to prioritize listening for clues and observing their body language. Then, we have to manage our own expectations and try not to stress. Kids feed off of these negative emotions, even if they cannot voice what they are feeling. In the end, if we do all of these things, we are almost guaranteed an amazing session. However, if for any other reasons, we are finding that the kid's behaviour is just not cooperating with the session, we simply reschedule and wait for the clouds to clear. I'm here for you! It is not worth forcing something that should be fun and rewarding for all of us.