Woah, that guy is really...red! He even has "scarlet fever" on his tongue!
He's wasn't sold to you as a normal, am I correct? I noticed that your Hogger is nearing
the shedding process because his belly is bluish-grayish instead of ink-black.
When hiss (hey, they do that, right?) eyes start to look milky that's when the period starts that you don't handle him. You won't need to raise the humidity or anything like that though because he's a "dry-dweller" (that's why Hoggers are so different when it comes to other snakes in captivity). Try a name with a mystical tone to it (don't do names based on it's behavior or appearance).