Come into my barber's shop said Todd unto Toby
For a roughness I do detect about the throat I fear
Me thinks it would look better when cut from ear to ear
-From "Sweeney Todd"
So... You walk into a place of business where a minimum wage employee and total stranger yanks your head back and wields sharp implements around your neck and throat while paying more intention to pointless jabber about the weather and the scores to last night's game than he's paying to the deadly weapons in his hands. You have no idea if this guy is an undercover spy, a homicidal lunatic or if he's even sober. Why do people willingly do this on a regular basis, and then pay twenty bucks for it? Have you seen Sweeney Todd?
This is probably why I only get my hair cut every two or three months, and thus look like a slightly meatier version of Shaggy from Scooby-Doo.