I'm still in high school, but I still have something to say about middle school and high school jocks. Most of ones I knew in middle school didn't see anything wrong with me, and some may have even been a bit nice to me. One exception is one I've known the name of since 6th grade.
This jock plays football and one of his positions is wide receiver, which he is extremely good at since he runs very fast. When he is going for a touchdown, he easily outruns the other team. He didn't start bothering me until 7th grade, and he did it more in 8th grade. If I even looked in his direction but not directly at him, he would ask what I'm looking at in a somewhat threatening or foreboding way. It didn't scare me, though, because I knew he wouldn't actually do anything. That foolish jock later called me a fa***t in 8th grade. That word did not offend me as intended because I am not actually the dictionary definition of fa***t. fa***t is a pejorative term for a gay man, and I am bisexual and female. When the jock called me that for the first time while I was passing by the table he was sitting at with his jock buddies, (who didn't seem to care) I stopped walking for a second to process this but didn't look in his direction. After I processed the information and determined that the "insult" wasn't really an insult, I continued walking. However, the jock didn't stop after that. He would call me a fa***t 2-3 times a day, and he would even invade my personal space so he could whisper the word in my ear. Every time, I would just ignore him and keep walking. After that phase was over, he would act all disgusted around me whenever he saw me. The next year, I was expecting the jock to go to my high school, but I discovered that he actually started going to a Lutheran private school! This was a huge victory for me, but his middle school buddies are now at my high school and don't seem to mind my presence.
TL;DR - Most jocks do not seem to mind me, though there are exceptions.
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I am no longer using WP. Please PM me if you want to talk.