Reacting this way towards being trolled is the reason people troll you. They know that they will get this kind of reaction out of doing the smallest thing to you. That's why you are trolled. I didn't do that to impersonate you, I did it because I knew you would freak out like this and I find this very funny when you do it. Like everyone else is saying here, let it slide. If you don't want to be trolled, don't feed the trolls like this. Ignore it and move on or it's just gonna keep happening.