Most Js probably want to stab me to death, since I'm late for almost everything. Especially SJs, whom I've noticed many have a quality of wanting to be early instead of merely on-time.
In college I always hated those super-J professors who would give a pop quiz every day at the beginning of class, which over the course of the semester made up like ten percent of your grade, and they would never repeat the questions if you walked in even two or three minutes late.
In fact, I'm pretty sure the two professors I privately battled with the most viciously were probably FJs.
Times for me are merely "a suggestion," though when it came to my grade I would make more of an effort to be on time, all the while resenting the bitch who made it part of my grade to be on time, like we were still in fucking high school or clocking in at ye olde factory.
I love the professor the most who emailed me, claiming she couldn't give me less than an A, though I missed 1/4 to 1/3 of the semester "in class" because of the quality of my work and grasp of the subject matter.