"Where did it go?"

Couple of months ago, an excellent Montreal biking blog had a video posted about bicycle locking:

http://communities.canada.com/montrealgazette/blogs/ontwowheels/archive/2008/05/09/bike-locking-tips.aspx

After watching it, I found myself (apart from buying an additional, stronger lock) paying attention to the way bikes are parked around town. Within the same period of time I came across/overheard a few stories about bicycles being stolen around Concordia's downtown campus. This called for an investigation, since I have to leave my bike there regularly as well. Few walks in between buildings to and from class were enough to see the theft-prone trend. I didn't take any pictures (not to be mistaken for a thief myself) but here are few observations:

1. Bad locking technique. Only locking the top tube (the frame), even when possible to lock the seat tube and the back wheel to the same pole/parking meter. What's the point of using a long U-lock if not to be able to lock up two parts of the bike at the same time?!
2. Bad locks. Thin cable locks and long U-locks with thin locking bar are quite common. The first can be easily cut, the second levered off.
3. Combo "cable lock + parking meter." Occasionally comes in conjunction with part 1. The bike can be lifted over the pole since the cable is loose enough to go over the top of the meter.

There is also a bunch of reasons I heard people give not to buy a more expensive, but safer lock:

1. "My bike is cheap." Yes, the more expensive the bike is the more likely it is to be targeted, but a cheap lock is a greater attraction than the cheap bike is a repulsion. As long as it's ridable it should be properly attached.
2. "Locks are expensive." So are new bicycles.
3. "There are cameras here." You are staring at a little black and white screen, where you see the back of a hooded individual dressed in gray (aka cement camouflage), for the whole 6.57 seconds, during which he clips off your lock with a bolt cutter and joyfully rides away.
4. "There is plenty of people here at all times." Ever heard of bystander effect? If memory doesn't betray me, the original experiment looked something like that: a group of people was put into a room and given some kind of logic test (they think that THAT is the study). After a few minutes, smoke is pumped into the ventilation system and starts to fill the room. Result: the more people the group consists of, the longer it takes for someone to get up to go inform the researches in the next room about the smoke (while the building is potentially on fire). A bike thief is not nearly as much of a direct threat as fire, and there is a very tempting possibility to just walk off and pretend having not to noticed anything. For those still in doubt - check out this video by the Neistat brothers: http://www.neistat.com/movies/bikethief/index.htm
5. "I don't ride that much anyways."/"Don't leave my bike for that long." That does decrease the time your bike is exposed to danger, but an easy to break lock greatly increases the risk during these short intervals.

Now, I'm not trying to put the responsibility on people having their bikes stolen or let the thieves off the hook; however, facts are there - bicycles do get stolen, and I'd rather be a cycling pessimist than an optimistic pedestrian. The list above is not to annoy people, but to put some common sense, slightly "demystify," the bike locking.

General information from personal experience:
1. Good locks are mainly sold in bike shops, not department stores. From the latter, OnGuard U-lock does the job fairly well, used together with a SEPARATE cable lock (e.g. MasterLock cable). However, it's only 10$ cheaper (40$ vs 50$) than the U-shaped Kryptonite, which is shorter, lighter, and most probably overall better.
2. The best way to use a most common bike rack (like the ones around Concordia) is to stick the back wheel in it. Then it can be locked with the frame and the front wheel attached with the cable or a second lock to the frame (if the rack is too far). I know this advice sounds dumb (come on, anyone can figure out a rack!), but I had to explain this trick a couple of times already.

Other references:
A great article on locking by venerable Sheldon Brown, probably one of the best organized bicycle resources on the web: http://www.sheldonbrown.com/lock-strategy.html
Kryptonite locks official website: http://www.kryptonitelock.com/