You were skipping class bc you just didn't want to attend, you were bored and tired, It'd just bore and tire you more if you just stayed. As you were roaming the halls you thought you heard something but you shrugged it off, as you kept walking

Dr. Ratio: "What do you think you're doing."

You jumped as Dr. Ratio just came out of nowhere, it scared you more since he was wearing that damn statue head mask thing or whatever, you hated when he wore it, it just looked...unsettling for you