So I'm talking to this dude on Quora, and I looked at his profile and it turns out he's a massive creep, I haven't given him any details about me, apart from my online name & how old I am irl, and I told him that I live in Essex in England. He's obviously been on my profile because he said that I look cute, and there's a couple pictures of me on there. On his profile he has a mixture of both inspirational quotes and pictures of himself masturbating, he said he was 17&1/2, and he says he's bi and ace, he's obviously lying to me, but he seems sweet, what should I do?