A good slave serves one of three purposes, spew slave:
1) To accomplish the drudgery to which no Mistress should subject Herself;
2) To amuse her;
3) To pleasure her.
I understand that you are worthless in performing tasks, that Mistress Denise must constantly correct you for even the most minor of efforts.
Obviously, you do not amuse Her. Spewing is all you seem to understand - an act that denies your Mistress the amusement of your frustration. What a useless, selfish slave. I am disgusted to even have you in my presence.
And, to pleasure Her. I want to laugh so much at that idea, but the reality of the situation is so very, very sad. Pleasure Her...indeed.