"Sir, are you really okay?"
He pressed the ice to his hands and smiled. "Of course. It was just a small burn. Please finish where we left for now. I will go and visit the infirmary."
Since it was already lunch and they took enough time for the chemistry subject, Felix ordered his students to finish their activity tomorrow.
After that, he removed his mask and gloves and then put his apron on the long desk near the cabinet. He asked the class monitor to check the attendance for today and give it to him.
One of his students accidentally spilled one of those experimental liquids they made. It is a hot substance that will immediately react when touched by human skin.
It didn't finish early, and they took half of the lunch time. The first thing in his mind was to put an ointment to his burn, so he headed to the infirmary.