Bad Words

How about you give me an adjective and a noun that when paired make you cringe.

Sure, there is the usual: Drunken Driver, Petulant Policeman, Creepy Cableguy.
Now, how about Neophyte Phlebotomist?

Grant signed up for the High School blood drive, was scheduled for around 9 AM on Thur. Nov. 11th (this way he would miss English Class).  He requested a special pancake breakfast, but his mother suggested he needed to face the needle with more protein.  Hence she was out of bed early making a perfect batch of crispy bacon and popovers filled with jam and pumpkin butter,  We all agreed this was a good start - as far as it went.

Dodging English class, Grant sat in the designated donor's chair, and was approached by a young woman with a needle and a plastic bag who exuded a perceptible confidence deficit.  Grant extended his left arm as requested, then his right arm, and then his left arm again. 
Where are your veins? She inquired. 
She proceeded to spank this elbow crease with a couple of her fingers. "Hey! Hey! She shouted across the room, "I can't find this guy's veins."
A more experience bloodsucker came over and had Grant stick out his left arm.  She drew a line upon his skin and instructed Grant's phlebotomist to "Try it there." {Remember, lines are for beginners]
On target.  But - "Hey! Hey! I can't get any blood to come out of this guy's vein!"
The experience woman returned and cranked the needle the other direction; and just like Moses in the wilderness striking the rock with his staff.  The precious fluid flowed.

Beware the Neophyte Phlebotomist -- lest this story be written in vein.