So here is the basic story.
Every Thursdays, I have chemistry tutorials, lectures and labs.
For chemistry labs, we need to wear jeans to protect legs from chemical spillage which the lab coat does not cover.
And for some reason, I keep forgetting and the PhD assistances told me that I would get kicked out next time if I don't have the appropirate dress code for the lab.
Currently, I can only self one at a time and it's a pain nor do I have all the time to waste doing so.