I, too, have a ring lock on my bike (also a Breezer). I like it for use at work, where everyone drives and there is a security gate (also, I park it inside). But, I also use it for quick stops on the way home if I didn't bring my cable lock.

While I agree that someone could just carry my bike away and wouldn't be stopped, I feel we live in a safe area and the chances of that are very, very low.

Places I use it at just last week include our High School--for a track meet, library, and market. I didn't want to leave it at the market, but I shopped quickly. I would use this at our barber shop, too, and have done that several times.

When I know I'm going places like our market or Aldi's, which are on bigger roads, I take my lock.