I am working on a class in response to this post and I am wondering, when I am accessing a field, and doing work. Should I not set access to the field to false after I am done? In the example I saw it's left accessible, and when I search some examples of other people using Field#setAccessible() they, too, were leaving it accessible. Is that really a good idea? I mean surely it can't be all that bad. But just wondering.