This thread reminds me of an old Dr. Katz episode. The comedian on the couch (Bill something or other) tells Dr. Katz he just left the dentist.

Bill: I had my teeth cleaned by the dental hygienist, and she's digging and scraping and gouging, and my gums started bleeding. And she actually said this. She said, "Do you have a problem with your gums? They're bleeding." I said, "Well, ya know, they weren't bleeding when I came in here. I think you're doing that."

Dr. Katz: And she wouldn't own up to any responsibility at all for the bleeding?

Bill: None.

Oh, that's right the digging and scraping and gouging is all for our own good. In fairness to my dentist/T, I do have a propensity to bleed.