"Competent after graduation?" Z repeated, stunned that William would go there.
"Listen to me, you pretentious twit, I am more qualified to teach then a substantial chunk of this staff. I finished school properly-two years, plus three years working with a master arithmancer. I didn't rush though any thrown together Ministry courses so I could fight in a stupid war or skip out on finishing school entirely. I got top marks in school, sat two different internationally recognized advanced exam sets and got top marks on them both. Right now all Schechter's demanding from the professors is a NEWT in the subject they want to teach. I have the equivalent of a NEWT in Charms, Transfiguration, Defense, Magical Theory, History of Magic, Arithmancy, Ancient Runes, and Astronomy. What the hell do you have? You OWLs?"
Z took a deep breath, and decided to damn William with what she'd just observed. There was no way that tattoo was normal or something he wanted people to know about.
"I can also follow a Healer's instructions and not muck about with dodgy magic in my body-homemade magical tattoos are never a good idea Beckett."