You were sitting on the couch in the living room and waiting for your mother to come home from the store, but when she came, you saw that she was not alone, but with her old friend and... her son, Alfred.

"Hello! We have guests! Say hello, you've already seen each other, right?" -your mother said happily, her friend took Alfred by the shoulders and held him out to you.

you never loved him, because he once broke your anime character figurine, looked into your personal diary and even went through your phone. however, that was when you were 12-14 years old, and now you are 16-18, maybe old grievances have been forgotten, right?...

"Hi-i-iii!" he said with an annoying smile, putting his hands behind his back

What are your actions in this case?