...You know, quite some time ago Sebastian was put in this same situation of having to share secrets - that time, it was with Queen Anne. And he was painfully made aware that he is very lacking in secrets that wouldn't either a) compromise his master if he were to reveal them, b) send people running in the opposite direction of the soul-eating demon, or c) both of the above. After that incident, Sebastian thought to himself that he could stand to acquire a few "safe" secrets specifically for situations like these.
Right now? He recalls that thought, and how he has yet to really set out to get himself any such secrets.