it's said during the day, best hint is what dave thinks of at the vault: ''whats the worst possible outcome''
WolfieMkho said:
"Day 10 would be the same password for all characters. I wouldn't really want to spoil you the password. But the answer to the password is the conversation you have with Benson before meeting up with Sal and confronting him with Benson (when Benson ask Sal if he had experience sleepwalking.)"
cerberus210 said:
"...what dave thinks of at the vault: ''whats the worst possible outcome''"
Those are good hints. Good luck.