And, there hangs the dilemma. I suspect that there's a limit to where rules can reach ... at least, and still be a place you'd want to live in.

When errection is as simple as puffing some air into a bladder, and filling is done with a garden hose .... when the whole ting sets up, or tears down, in less than an hour ... you don't have a 'structure' as much as you have a 'tent.'

To be honest, coming in after a cold day in the field, I wouldn't mind setting one of those up in my living room. A beverage in one hand, the TV remote in another... just what the doctor ordered! Summer comes, or the lease expires, just siphon it out the window, roll it up, and away I go!

This won't be the last time that technology has outpaced our ability to write rules.