Fine, I guess I'll play along: "Merry Christmas!"

BTW, I heard noises coming from my roof and in my house an hour earlier... but it was just an immortal pedophile breaking into my house, and nibbling on snacks from my fridge while rooting through my stuff. He'll probably leave some creepy "gifts" in plain view once again just to say, "Hey, I broke into your house. See how easy it was? And I can do it again... Any. Time. I. Want."

Aside from some psychological trauma, it seems he's quite harmless. At least as long as you don't try to confront him, that is...