No, if they are about the person's spouse. Otherwise they must be dismissed, or at least controlled if they persist. Prayer, exercise, work and hobbies help, 7. No, if the person has a right to know the information. Avoid pornography because its purpose is to arouse sexually.
Deliberate arousal is moral only within sexual activity between a husband and wife.
You shall not steal. You shall not covet anything that belongs to your neighbor. Respect property, be honest. Stealing even a small amount from the poor is a mortal sin. If the stolen article is gone, its value must be returned.