Shirtless at school

I go to my school's library for literature reading in the summer. It has a reading room separate from where the books are stored and that's ideal for me. Yesterday it was so hot (there was no aircon whatsoever) I wanted to go shirtless but my physics teacher (a kind young man) was sitting opposite, so I broke the silence and politely ask him if I could take my shirt off. Was expecting a no from him but surprisingly he said okay (there aren't any rules against it either) and I couldn't be happier to spend the entire time there shirtless :)
Honestly I hope u guys can experience it too cuz being shirtless where u normally wouldn't want to be is awesome :)
Also I'm in my out-going era so feel free to chat with me about being shirtless! I love to hear ur stories :)