Yeah, I often stage photos early, so I can be 'in the moment' when the event is happening. I'll take pictures of my kids with their cake before the birthday party, photos of my daughter dancing in her costume before the performance and I tend to take soccer action shots of my son while he is warming up for a game rather during the game. I still get photos here and there during the events, but I try to relax and soak in the moment without the camera when possible.
What I DO do a lot, is try to put them in clothes that match a kit I may want to use. I am totally guilty of that, a lot.