Board Thread:Fun and Games/@comment-27398195-20171110060938/@comment-33380184-20171119023956

2 bottles, so that means that:

1. There were 2 people equipped with acid at the time.

2. 2 bottles used, meaning that nobody fought over a single bottle

3. It is possible that it was a sneak attack, since the acid is so strong, an accidental spill could have killed the attacker too.