I have
A man that was given that exit row obviously on check in and when the FA came over and asked if they were happy to be seated in the exit row and assist should there be an emergency...he cracked it at the FA, said he had no intention of helping anyone in an emergency and only wanted the seat for the extra leg room.
The FA was very calm and told him he had to move or he could be charged with an offence should passengers need assistance and he has refused in the prior legal message.
He moved.