One of the most well-known rules in boxing is to never hit a guy below the belt. Hitting a guy below the belt is just ... well ... it's just not a very nice way to fight. Now, most Green Lanterns don't subscribe to the rules of boxing. But, darn it, maybe they should. Not only do they hit below the belt, they use their power rings below the belt:
Yes, that's Galius-Zed using a power-ringed vise to crush the most celebrated portion of Hal Jordan's anatomy -- well, the most celebrated portion to Hal, anyway. Maybe Galius-Zed is just ignorant of Earthman anatomy.