Guest's strong language suggests that he or she is very angry (and doesn't he/she have a right to be?) But I believe he/she has a valid point.

Last night the kids were outside throwing snowballs at the house, and one hit the front window rather hard. I went outside and filled their minds with the ugly vision of Dad angrily replacing a broken pane, and peace was restored. That was a constructive use of unpleasant mental imagery, employed by someone raised as a pacifist (by a father who has written hundreds of songs about love and/or delight) with a heart full of hope and love.

In my opinion, there are appropriate times to compel people to visualize the horrible consequences of certain actions.

Also, I do not believe for a moment that Guest gets his or her rocks (oops, hers don't have rocks) off on picturing the coming carnage. (I felt no arousal while telling the kids to stop plonking the windows).

And Guest, sweeten up - these folks are on your side.