In one arc of Casey and Andy, Andy and his girlfriend are captured and tied up by the Mime Assassin. Casey's girlfriend is Satan, but she's Too Kinky to Torture, and is enjoying being tied up too much to bother to rescue Andy.
Happens to Bleu 3 times in Cuanta Vida, the first time alongside Scout.
Parakewl and Mauchi from Tower of God do that to all their team member they can find so that they can be used as hostages to make Quant let them pass the test. Unfortunately for them, Quant calls their bluff by saying that if only one drop of blood is drawn, everybody will die.