The other item that interested me at the store besides their books was the lockpicking tools they offered for sale. I bought several different kinds. Remember the old joke that goes, "How do you get to Carnegie Hall? Practice, practice, practice"? That’s what I did to master the art of lockpicking, sometimes going down to the area of tenant storage lockers in the garage of our apartment building, where I’d pick open some of the padlocks, swap them around, and lock them again. At the time I thought it was an amusing practical joke, though looking back, I’m sure it probably threw some people into angry fits and put them to a good deal of trouble, plus the expense of a new lock after they had managed to get the old one removed. Only funny, I guess, when you’re a teenager.