I just saw this article and I was pretty shocked. Most of them make you shout "OH MY FUCKING GOD!" and make your best awkward/ disgusted face.
My favorite is the Tobacco smoke enema. Apparently this is where the popular saying of blowing smoke up someones ass comes from. What's yours?
Enjoy!
http://www.surgicaltechnologists.net/blog/20-scary-old-school-surgical-tools