There are many ways a speaker can put you at your unease. New one last week.
Never before has a preacher put me in mind of one of those electric fans which sweep a room with cooling air in the summer (summer is the fourth season of the year in other parts of the world, English chums). He never got precise eye contact with an individual and yet the repetitive left to right movement made me nauseous.
Left two three, right two three, left two three. A little too far above our heads for any cooling breeze of insight to waft in.
Terrible. If he has friends they should tell him. He is an experienced public speaker.