Some forms of physical degradation such as spitting, piss, consumption, eating cum and such because it makes me feel "dirty" and improper. I have some pride in acting like I have decency (even though I have none), so when that's stripped away it's..... difficult being bratty. Another would be begging or saying things that reaffirm my perverseness. For example one time Mistress Kang had me repeat "I'm a slutty little girl" over and over if I wanted her to ______. I was dressed up and extremely uncomfortable/stressed locked in the stockade. But even so I still had a choice. The desire for pleasure overwrote my inhibition.
Verbal humiliation from Mistresses such as sph, physical traits and degradation doesn't really affect me mentally, but I do find it interesting if not funny.