Could I deal with a person like that for 17 minutes? Since I assume he was behind a cell door I would do my best to calm him down, convince him to take his medication, if that did not work, put him in a padded cell and in suicide proof clothing. If restraint was need, I would do that, but then not spray him in the face because he got on my nerves.
Also if you must know, I am studying to be a prison chaplain/social worker and working with people like this would be my life goal.
Without any other guards you, without any SWAT gear on yourself, are "going to put him in a padded cell."
Well, that's real humane, a padded cell by himself. Solitary. With the clear implication that you think he's crazy. Are you just trying to tear his mind to pieces?