Cunt I sorta see as okay, but even then, it's a mixed response. I mean, that's like me identifying as 'queer', but having the discomfort of knowing its origins.
And in class and when explaining things, I refuse to use anything but formal language. My mother sometimes says 'his weener' or 'her you-know-what' around me when discussing what happened at the hospital, and I'm offended.