Only after learning to do it reliably on the padlocks I had did I ask myself what I am actually going to do with this skill. I'm not going to rob my neighbors' storage compartments or break into any school lockers. So why do I feel so accomplished? And I do. I do not see myself ever using this and there is no way it ever comes up in casual conversation, but I still feel like this was a great use of my time. On reflection it may have something to do with my current easy access to empty beer cans.
No doubt worth the time. I already know I feel good about it. The why of it doesn't really matter, but is kind of fun to think about.