I ground through the hasp of a really expensive bicycle lock one time to open a lock, and that was an eye opener. First, because I had no idea if it would work,

I ground through the hasp of a really expensive bicycle lock one time to open a lock, and that was an eye opener. First, because I had no idea if it would work, and it worked very quickly and effectively. As you noted, that makes one look at locks a bit differently. Second, I've never spent a lot of time around a metal shop and it did not occur to me how hot a small piece of really hard steel would get when grinding through it. That was exciting.