At pool, there are situations where an intentional foul is the best shot to take. (At snooker, intentional fouling is more or less forbidden.)
If you watch the game of one pocket, you will often see players who have no good shot and no good legal safe simply roll the cue ball to the other end of the table to leave their opponent without a shot. One pocket has no ball-in-hand-for-any-foul rule. The penalty is loss of one point.
It is fairly uncommon at nine ball that an intentional foul is the best play because it gives up ball-in-hand-anywhere but it does come up when the balls are clustered. It also comes up when a player plays a safety which leaves no practical way to hit the ball on. Then making a cluster gives some protection against a run out.
Here is a good example and an amazing escape.