After a few more hours, I'm finally done with my 8 Sims to play the #asylumchallenge . They all have the #erratic trait but beyond that, they each come from a different path of life and bring along a unique set of experiences and tendencies. Any of them can be the active sim, you just have to set their aspiration to one of the allowed for the "MC". Have fun with the #insane #asylum inhabitants. One of them doesn't belong in there and it's up to you to prove that.