They do say ignorance is bliss

Sarah strode into the classroom to realize it was more akin to a laboratory, chemistry did away with the tiered rows of seats and distant projector in favor of multiple rectangular tables with built in burners and sinks, chairs were replaced with rotating stools so that students not facing the front of the room could easily swivel to listen to the teacher or observe demonstrations. Moving to a mostly deserted table in the center of the room Sarah sat down next to a quiet looking dude with long hair. He shot her and uninterested glance as she continued to take in the room, eyebrows raising as he noticed the length of her top paired with 2 hard nipples lying just behind the thin fabric. Catching his expression Sarah turned away to face the board and messed with her hair. God all this running around probably has me looking like a sweaty crazy person. Before she could think too much harder about it teacher introduced herself. "Gooood morning ladies and gentlemen!" " My name is Miss Green, and I will be teaching you all about chemistry!" Sarah couldn't help but find her odd. She looked to be in her late forties and was short and round in stature. That being said she was very energetic holding 99% of the class's attention as she pointed out the various pieces of equipment and safety features. The last one percent however was laser focused on something else entirely, the one percent being a he, a he with long black hair who happened to be sat directly behind Sarah. By turning to face her instructor she had shown him arguably the most interesting purple string he'd ever seen. After the intro miss Green finished up the introduction and started her class. Today's project was to combine a select few stable chemicals to create a very corrosive acid. After a a quick demonstration resulting in a small fire and a lot of smoke she addressed the class. "Allrighty!" "Now that I've had my fun its your turn!" "Everyone please go and put on your safety gear and get to work with your science team!" Sarah stood up and walked to the cabinet that housed the various coats, gloves, and goggles. The young man watched the string run as the top shrank by a line or two. Seizing the opportunity he quickly crouched breaking the string so it was only a couple feet long and collecting up the excess leading from the door before dumping the evidence in a waste bin. Fortunately most of the class was either standing in line or playing on their phones so his actions went unnoticed.