There is a man on the YouTube who follows me around and goes by the alias “Guten tag” he also uses what appears to be a caricature of Otto Von Bismarck the German statesman. I don’t understand how but I believe I am seeing him in reaal life now, he follows me everywhere I go on YouTube as well. I also think he knows my address and social security number. I do not know what he wants but his intentions are clearly malicious. If you have any suggestions, please help.