'Abbott Elementary' Season 2 review: Quinta Brunson's comedy sensation is still as funny (and relevant) as ever

It's only appropriate that Abbott Elementary Season 2 opens with an excited shriek.

That shriek belongs to Janine Teagues (Abbott Elementary's Emmy-winning creator Quinta Brunson). "I'm so sorry," she apologizes to the documentary crew filming her. "I'm just so happy to be back."

No apology needed, Janine. An excited...