<human>: Give me the gist of the text in a nutshell

So, today in my College Chemistry course, we learned about thermodynamics and entropy. it is a class of about 40 people, not huge, but whatever.
Having watched the anime Madoka Magica (there is a scene where entropy used as the undoing of the characters), and with everyone talking/obviously not paying attention I somehow thought it would be a brilliant idea to exclaim right in the middle of class:

"Hey Mr. Teacher, did you know that the laws of entropy really screws over magical girls?".

Of course everyone had to have shut up at the exact moment I said that. I don't think i've gotten weirder looks from anyone in my life. Not a soul knew what the hell i was talking about, so my pitiful attempt to recover from by explaining what the hell i was talking about ended tragically. I don't think im going to open up my mouth like that ever again.
<bot>: Don't bring up anime in class if no-one knows what the heck you are talking about. Especially magical girls being screwed.