The Human Shield

You are not going to believe this but I am actually a superhero. I have just compromised my identity to you but I feel it is in your best interest to know of this condition. I was born with mutant skin which is immune to penetration of any sort. For your safety I figure it best you know before this gets carried away. I was born this way and have used this as an advantage against criminals and the villians of the town, to keep civilians safe by becoming the Human Shield. Yes, that is me. But I'm afraid now that you know my secret identity, the confidentiality of this secret cannot be compromised and you will unfortnuately need to be exterminated. And this is why I cannot get my flu shot today.