There's nothing wrong with taking stuff from some abandoned place. Essentially, it's a torn down building and I doubt that anyone is really going to miss the suction machine from pennhurst.

Vandalism IS a different story, however...no matter how abandoned, there's no reason to draw pictures on walls that have history.

I take small tokens from places that I've investigated just to remind myself of those experiences.

And....COME ON!!! Someone turned a suction machine into a LAMP. How cool is that?