Of course, the ADD thing plays a big part too - after a couple of minutes, we're both off chasing something shiny - and neither one of us is terribly deep, so inevitably one of us makes a joke and we crack up, and life goes on.
Anyway, it works for us....
That happens in our home, too... so that really made me laugh seeing you write it. I can't wait for the husband to take the test... this is fascinating!