He might also be a bit shocked at first. Harry is one of the most well - known students at Hogwarts, and seeing him smoking might be quite unexpected for Snape. But then his shock would quickly turn to anger, and he'd take steps to punish Harry.
He's probably furious. Snape has high standards for student behavior, and smoking is definitely not acceptable in Hogwarts. His face might turn red with anger, and his eyes would narrow as he glares at Harry.
He might be initially shocked. Snape has a complex relationship with Harry, and seeing those scars which are a mark of Harry's past and his connection to Voldemort could stir up a lot of mixed emotions in Snape. Maybe he would feel a pang of guilt, as he has some role in Harry's life due to his connection with Lily.
Well, one possible consequence could be detention. Snape is strict and would likely punish Harry for breaking school rules by smoking. He might make Harry clean the Potions classroom or do some other unpleasant chore.
He might be initially shocked. Snape has this complex relationship with Harry. He may try to hide his concern behind his usual cold exterior, but his eyes might give away his surprise.
He might be shocked. Snape could be taken aback by the depth of Harry's emotions and experiences in his memories.
He could also be secretly amused. Despite his stern exterior, Snape might see a bit of his own unrequited love in their relationship. So, he might give them a stern warning but not be as severe as he usually is.
Well, Snape's reaction would likely be a complex one. He might try to hide his true feelings. Since he has always been a bit of an enigma. The scars on Harry are a visible reminder of his connection to Voldemort. Snape may feel a sense of responsibility towards Harry, whether he wants to admit it or not. His reaction could range from a momentary lapse in his usual cold facade to a more long - term change in his attitude towards Harry, as he contemplates the significance of those scars.
Snape might also keep what he saw to himself at first. Instead of immediately confronting them, he could choose to observe them further. He might be curious about what they were really up to and use his skills as a spy to find out more. This way, he could gather more information before deciding on the best course of action, whether it be punishment or something else entirely.
Sirius might confiscate whatever Harry was smoking. He would then sit Harry down and have a serious conversation about the importance of making good choices. He could also remind Harry of the dangerous magic substances that might be out there that are far worse than normal cigarettes and that he should stay away from any form of harmful substances.
At first, Harry is likely to be angry. He might feel that Snape is being unfair and targeting him. Harry has a strong sense of justice, and when he believes he's being wrongly punished, he'll be resentful.
It could strain their relationship at first. Sirius would be worried and disappointed, and Harry might feel resentful of being caught. But in the long run, it could strengthen their bond as Sirius tries to help Harry get over this bad habit.