I felt bad for the happy guy who likes to swim in the sunshine so I went back and tried the option where we have the party without the angry girl. Unfortunately in that case there is no option to switch the drinks, you're forced to poison the scared guy. But after it happened, the happy guy was completely apathetic to the death and still dedicated to the corrupt captain. Seeing his attitude changed my mind and I went back to the save where he died along with the captain he so willingly followed. What's that quote? For evil to prosper, all that's needed is for good people to do nothing? Something like that.
