These two..

...can drive me nuts bickering most of the day, reveling in all their differences, and just generally rubbing each other the wrong way.

But.

{pardon the crappy cell phone picture, but I was in a hurry to capture this scene before it evaporated before my eyes}

It turns out, they can work together beautifully, as they did for nearly two hours today constructing this "lego city" and proudly showing off the results to me.

Good to know.