Teacher: Please be careful with the HCl, class. Teacher: It is a highly corrosive liquid. Teacher: Mr. Summers! John: HCl fight! John: Wait. John: I think that’s taking it too far. John: Hey! You were listening- Rayne: For every action there is an equal and opposite reaction. Rayne: In this case, that reaction is to melt your face. Rayne: Hold still and I’ll try to make it like the Jokerâ