I finally got around to using Reflector to look at some assemblies. I hate to admit it, because it shows my ignorance, but I guess I assumed that if a method was marked private, that it was somehow invisible from prying eyes. It makes sense though, that it really isn't invisible, since it's right there next to the public methods. And it makes sense that what goes in can come out.
Now, when I want to see how someone does something, and they don't provide the source code, it's all right there. Of course, not for the copying, but just for the learning. No, really!
Pretty impressive tool!