The scary part is I think they could have this discussion as the adults they pretend to be are.

You know what's even scarier? I kind of had to keep reminding myself that they were nine XD

Now, if Rodney could invent that cloaking device, the treehouse couldn't be seen from the street.

He's working on it, but is having a hard time finding the parts. Also, John keeps suggesting they just camouflage it with leaves or something, rather than an invent a new form of science. It's so hard being an under appreciated child genius.