Grab It and Go

Or, as I can just hear somebody saying, how do I explain to my six-year-old that it's not stealing?  This radical new approach to retailing is more than your Head Trucker can get his head around.  And what if, like me, you have no super-duper-nuclear-waveband-hypertechtronic-cell-phone-thingy?  And what about all the cashiers who will be thrown out of work? And what if, if, if -- ?? 

I'm not ready for this, are you?