The key to harmony is: separate seats. We put Abby in the middle and J.T. in the back. It also helps if at least one of them is sleeping. With this arrangement we hear much less of the following:
"Nooooooooooooooooooo!"
"She hit me!"
"He hit me first!"
"Well she started it!"
"J.T. took my toy!"
"Abby is throwing things at me!"
And they hear less of this:
"Stop!"
"I said Stop!"
"Don't make me stop the car!"
"Why can't you BE QUIET!!" (ironically said very loudly)
"Please. Please. Please. Stop."
"(insert various muttered ugly words here)"
