> You just don't leave it outside at all!

How practical is this really? You bring your folding bike into the restaurant where you're eating, into the bar where you're meeting friends, into the gym (it doesn't fit into a locker), into the little corner store with narrow aisles, etc? I feel like taking the folding bike indoors can work for a commute if your office doesn't have dedicated safe bike storage, but I think it falls apart as an overall response to "I'm inhibited from using my bike as my primary transportation b/c it is an easy target of theft"