When your heavily made up woman is giving head, get her to look up at you and just as you unload into her mouth you throw a glass of hot water into her eyes, she'll gag and her eye makeup will run given the appearance of a scalded panda.....
Craig: Hey Simon, how did you get on with the crack head whore you paid to take care of you last night?
Simon: Really Good, I paid her 5 bucks to eat, shoot and leave.