Strange's arrogance is going to cause him to give away more information than he wants. Because as Childermass mentions 'warlocks', he just seethes. His eyes narrow, his nails dig into the palm of his hands as he clenches his fist. Being called a warlock has apparently pissed him off more than being called a stalker. Wonderful priorities, bud.

"I'm a fourth rank mage in the Circle of Enlightenment and have been in the circle for over ten years now." So question now is, why isn't he a higher rank? "I'm not some warlock who's stupid enough to bind themselves to a demon in a half-assed attempt for power. None of those idiots could even get close to summoning a faerie servant in the first place!"