Ahah, I mean discovering something new about the game logic
It happened some time shooting only one, but I never cared about it. This time happened to my friend (against me), and he pointed that to me, because he tought that because only one worm died and not the two that were in the group, this changed the fate of the round
He play Worms only with me since 4 years, and we don't go to far from "intermediate", only more ropes to move the 8 Worms (instead of standard 3) we each have.