Bamba's attempt to destroy the Golem Minosaur by slicing its source stone in half ended up duplicating it instead, as technically a stone cannot be destroyed, only broken up into more rocks.
Wiserue's attempt to monopolize on this trait later on by breaking the stone into more pieces was foiled by Bamba and Asuna.
No Sympathy: Despite Canalo and Kozue's pleas, Bamba coldly slices the wishing stone in half, feeling that stopping the Minosaurs should be done above all else. This ends up biting him and the others in the butt when it turns out instead of destroying the Golem Minosaur, he created two.
Yank the Dog's Chain: Throughout the episode, it looked like Kozue was falling in love with Canalo, then at the end of the episode...it's revealed that she has a husband. Even Asuna can't help but feel bad for him.