Lance, a devoted attendee of the evening service, has his eye fixed on the troublemaker from a few feet away, with an air about him like a collie watching a sheep, waiting for it to stray so he can dart forward and snap at it.
No violence has broken out yet, nor does it seem that it's going to, but Lance is here if it does-- and he meets eyes with the vicar, with a little nod. Just say the word.