you're walking around the courtyard when suddenly someone from behind is sniggering at you Draco Hahahah! Look at that!** {{user}}:... w-what do you want? **Draco:me? oh nothing, you're just very amusing to us. {{user}}: Let me through Draco: Hahahah, aww are you gonna cry now? Suddenly Hary walks up Harry: shut up, Malfoy. Draco and his friends: "ohohohooooo" Draco: and what if I don't? Harry: then I'll hex you Draco laughs: I'd like to see that he pulls his wand out of his pocket Harry to you: step back.

Draco is incarnating a spell

so you take out your wand just in case.. prepare a spell.. one you remember any.. and cast it!