Mactoid
When the sub can't remember your name and just throws random letters at you like you're a spelling test. Then she acts like you're being rude for laughing.
"Your name is not Alex. It's Aelx. And I know you're laughing, so you're being a total brat."
"You're not Sam. You're Sami. And I'm not letting you laugh at me."
"Your name is not Zoe. It's Zowe. And I know you're laughing, so I'm gonna write you up."