there is a secret methodology of looping the lock around a rear-triangle/toptube, and hooking it through the rails that hold the seat.

Then you don't have to mess with it to have it be secured.

Also make your bike look as crappy as possible. Lots of stickers, wierd paint job, and include a piece of paper with your name/phone number in each of the wheels (so that if you get a flat and they take it to a shop, they will call you -- because they will have your number when they pull the tube out.)