You know what a tantrum looks like, you can identify the warning signs before your child knows it's coming. The way they shift their feet, the slight whine their voice develops, the squinted eyes and tilted head. Take a deep breath and try to prepare, because here it comes...
Have you ever signed up for something, been super duper excited about it, then realized "... uh ... I don't know what the heck I'm doing!?" when the time came?