No, he can't. Lambert would have to explain much better than 'that one random guy deserves to die' to get him to turn and leave and even then, the thought of time wasted for however long the setting felt like lasting... It doesn't really matter now, does it? Here they are, horrible little ogres and all.

The first it cut in twain, while the next two meets what is very likely an unexpected obstacle for everyone apart from Childermass himself. He has never possessed much of what one could call offensive magic and this wouldn't really fit into that category, either, but he does wave his hand in their direction, magic rising to create an abrupt blast of wind out of nowhere. Small as nekkers are, both scream in surprise and go flying off into the dark somewhere.