[glorioushubris]

I remember reading this when it was published, as I was living in a college dorm at the time and strongly considered using this method to produce a master key. I didn't, because I couldn't think of anything I'd want to do with the master key once I had it. But I enjoyed knowing that I could make one if I'd wanted to.

[aidenn0]

I had plenty of legitimate uses for a master key, but I didn't make one because once 2 or 3 people know you have a master key you get blamed for every single misplaced object in the whole damn dorm.

[spoonjim]

You don't know that you could make one until you do make one.

[jacquesm]

That isn't necessarily true. There are a ton of things that I know how to make and that I'm sure that I can make but which I haven't made yet.