When I reanimated skyfisher spider with lively dirge, I was given the prompt to sacrifice a creature, to which I sacrificed a 4/1 Urborg Lhurgoyf, then the game immediately skipped to my opponent's turn without offering me to destroy one of his Permanents. He had a Welcoming Vampire and Edgar's coffin on board, both of which should have been viable targets, but I sacrificed my creature for nothing.