Just hold me

When a man starts explaining a concept you already told him you understand, instead of saying “I know” over and over until you die, try one of these:

Ok, which aspect is confusing you?

It seems like you have the basics down; Would you like me to recommend some good articles so you can get a more nuanced understanding?

this shit intense

   His specialty is a military funded class called Battle Alchemy, which he starts off by inviting any of his students to beat him in hand to hand for a conditionless passing grade (by the end of the first class, most students walk away sore and horrified).

    It takes half  the semester before they realize that Ed continues to beat them even when they use alchemy and he does not. They ask to see him use alchemy in battle. The next day, a man who looks almost the same as their professor shows up to class- he’s softspoken and polite, and the students expect a substitute lecture. Ed sits in the stands and laughs as Al proceeds to fight the entire class at once, and beat all of them. The students never ask again.

  (And sometimes, in the middle of practicals, students swear they can see the Fuhrer watching from the edge of the field.)  

   I can also see him causing a hell of a problem when it comes to conventional textbooks- 

  “This is definitely wrong.” 

  “Sir, this is the most recently updated textbook for theoretical alchemy-”