> I can guarantee that about 45 seconds after leaving the door at work, I'll be starting my car and moving out of the lot. You can't guarantee that, since car

> I can guarantee that about 45 seconds after leaving the door at work, I'll be starting my car and moving out of the lot. You can't guarantee that, since car problems to arise. This is the same issue with bike share schemes. I don't have to worry about anyone stealing my bike, or if the bike gets a puncture or has issues, I pick another bike.