Picking a lock takes time, and sometimes even locksmiths can't do it quickly. I remember being locked out of a condo at Lake Tahoe last year, and the locksmith who was called out to open the place up spent 2 hours trying to pick the lock. Finally, he gave up and took out a hammer and chisel. Just two hits on the deadbolt were all that was needed to completely demolish it. The door was open in about 10 seconds.
Locks only keep out honest people.
I was surprised at how slow the graphics of the system was, and went in to tweak the virtual machine. I put in a few print statements to see what was going on in there. In desperation I put print statements all over the place. Finally, something happened - but not much. Interpreted Smalltalk code was then taking control and doing the drawing using more primitive calls.