Are you a good witch or a bad witch?
(Glinda the Good, The Wizard of Oz)
Well, they call her Glinda the Good.
But she can't even tell the difference between a dog and a witch dog.
So obviously (I'm afraid I'm in a bit of a muddle, she says) she isn't, not very.
When it comes to witching, the difference between good and bad isn't the difference between help or harm.
No: when Tiffany Aching says of Mrs. Lettice Earwig (author of To Ride a Golden Broomstick) that she's “not really, when you get down to it, a very good witch” (Pratchett 99), it has nothing to do with helpful or harmful. Nothing at all.