Quite a few YuYu Hakusho villains have fun crossing the horizon. Thankfully, all of them get what's coming to them.
- Gonzo Tarukane had Yukina belittled and tortured just to produce the valuable gems her race produces. And gets killed by Younger Toguro.
- The English Dub arguably gives Tarukane a much larger crossing of this line via a one off line of dialogue revealing that he's the one who founded the Black Black Club in the first place. This puts all of the murder, torture and enslavement of demons the group has comitted on his hands, all so he could make money off of it.
- Suzaku commanded all the humans under his control to hunt down and kill Keiko, then tortured Yusuke and forced him to watch Keiko and Botan get nearly killed. Yusuke nearly gives up his life energy to kill him.
- Elder Toguro crosses the MEH when he brutally impaled Kuwabara over and over again, slammed him to the floor from extreme heights, then attempted to break his psyche by using his morphing powers to recreate a sickeningly twisted version of Genkai's death right in front of Kuwabara.
- Mukuro's father had her fitted with cybernetics to make her a sex slave at birth, raping her since she was a child until she poured acid on herself to make herself undesirable and escaped. He also gets what he deserves, due to a combined effort between Kurama and Hiei. He is attached to a parasitic plant that will paralyze him and regenerate any wounds that he receives, and is given to Mukuro to torture whenever she wants as revenge for what he did.
- Dr Ichigaki crosses the line when he poisons a famous martial artist in such a way that everyone believes he'll die of an almost untreatable illness. He gets worse when his desperate disciples ask for the cure and he promises to cure them only if they become his guinea pigs for an experiment and his team for the Tournament... but deep down he has already decided not to keep his promise. Finally, he brainwashes and transforms the disciples into heartless zombies, placing a... THING on their backs that is killing them slowly and keeping them under his thumb, and under his influence the three beat Kuwabara savagely, unable to do anything.]] Therefore, it's a HUGE relief to see Genkai managing to save the three guys, and then Ichigaki trying to pump himself with drugs to become a super fighter and getting satisfyingly curbstomped by Yusuke.
- In the Sensui arc. Twisted Dr. Kamiya had poisoned a hospital and continuously taunted Yusuke with the fact that due to his medical knowledge, he couldn't be knocked out: only killed. Part of the taunting was that in order to save the hospital, Yusuke would be forced to supposedly cross a MEH. Yusuke eventually does beat Kamiya lifeless, but Genkai assures him that what he did had been a grim necessity—plus she chest-compressed the just-deceased doctor back to life. Milage on Dr. Kamiya himself may vary, so his eventual turnaround may be alternately viewed as sincere or "too little too late".
- Sakyo crosses when he seals all the Dark Tournament stadium's evacuation routes, trapping the entire audience in the building to be fed on by Toguro's Life Drain technique.
