Three-spined sticklebacks that harbor a tapeworm are less likely to perform courtship behavior correctly and are less successful at reproducing. An image is provided.

Lets say you want to create a dreamy photograph, you can break the rules by putting it out of focus. Another great example is by trying to create a dramatic photograph by trying to take a perfect photo with a straight road with fields on each side. break the rule of thirds and center the road, it'll create a dramatic photograph.