My emotions won't shut up (so I might shut down)

"Mr. Parker, what is a coordination compound?"
Okay, that was an easy one. Peter had known this since middle school, he could probably answer this in his sleep. So, with an air of confidence in the midst of all his nervousness, the boy straightened his back and opened his mouth to answer, and… nothing. No no no no no. This can't be happening. Not right now, thought the boy.
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In which Peter has a shutdown at school, Ned is a great friend, and Tony comes to the rescue.
(This is part of a series, but can be read on its own)