<human>: Can you summarize the given text in a few sentences?

So basically for the last several weeks my science class has been memorizing the periodic table. (Normal stuff ya know Gold = Au and all that good stuff) 

Anyway in PE today a kid (Let's call him Caleb) starts to talk shit to one of my friends (Let's call him Sean) who has a brain tumor. At this point I'm pissed off because I am close friend with Sean. So I had the bright idea to try to insult Caleb by using the periodic table. So I go up to him and say "Florine Uranium Carbon Potassium Yttrium Oxygen Uranium," He was completely confused but as it turns out my gym teacher knows the periodic table by heart (Who would have guessed) and so I had to run stairs.
<bot>: Told a bully "Florine Uranium Carbon Potassium Yttrium Oxygen Uranium," (Fuck you) in P.E. and had to run stairs because my gym teacher knows the periodic table.