Oh definitely since having children. Nothing is spontaneous other than perhaps a trip to the healers.
I've not been good at being spontaneous for longer than that though. Rigid discipline has often been my friend. But I used to travel with the dueling circuit and sometimes I'd simply decide to wander around those cities we were in and explore, and it was almost always worth it. Sometimes the people or things I'd find.
You, mischievous? Never! I can hardly imagine. Ha.
We were such stair step children. Much like mine in some ways, come to think of it. We were much closer in age. We fought a lot and still do occasionally, my brother and I. But it's always been that way.