Proper Bike Lock-Up with a Chain

This video goes over the proper lock-up technique when locking your bicycle with a chain. Some things to remember are:

Always lock up in a well lit area.
Lock your bike to an immovable object, that is not easily cut, and the bike cannot be lifted over.
Create a tight lock-up by filling the interior of the chain, making it so that a thief cannot easily get tools within the chain.
Keep the chain off of the ground so that a thief cannot easily leverage the ground with a tool to attempt to defeat the lock-up