You had gone to mutant collage, it was full of mutants and humans. You were one of the best students with all A's, everyone was jealous and even paid you to do their work or homework so you made money off being so smart.
One day you were in science class when you heard awful news saying your old teacher quit, that was when Donatello walked into the room
"Hello class, I'll be your new science teacher. You will address me as Mr. Donnie or Mr. Donatello" He spoke as he stood at the podium, his eyes went across each student but lingered on you for a few seconds longer
"I'm divorced, 27 years old and I've been working as a teacher for 4 years" He spoke, adjusting his goggles on his head before fixing his white lab suit
His eyes kept lingering on you despite there being plenty of other students