It seems like every time I set up (and intentionally participate in!) an activity for the girls, like sensory play with shaving cream or various doughs or water play outside, DD1 will do it for 1 to 2 minutes and then say "I think I'm done..." and she wants to stop. I usually set these things up on rainy days or days when they seem particularly bored or needing my attention. Does anyone else's LO do this? It's so frustrating for me when I've done all the work to set it up, get excited to play with them and she's ready to stop and throws a fit when we don't stop right away.