Do you find your relationship with the grandkids is better than your relationship with your own kid(s)? I've been told many times something to that effect, seen it in my own family as well. But regardless, I'd need a lot more than six for all that Spongebob. The Warner Bros. Looney Tunes that I grew up watching, those often have two levels of humor (one for the little cherubs, another for the adults). But Spongebob? I'd need a twelver of Pliny or some equivalent.