Event suggestion
I suggest a "character witnessing other characters' memories" type event like the one we're currently having, but instead of seeing memories, what's shown is people's deepest fears. Like a reverse Mirror of Erised? As an alternative it could be a "people visit each other's dreams and sees their nightmares" kind of event?
...And I guess it doesn't necessarily have to always be their deepest fear, if we want it to not be too dark. Sebastian could have nightmares about being five minutes behind schedule.