To be entirely honest, Sable hadn't actually NEEDED half an hour. The restocking had been done earlier, Judah was hanging about, what customers she had were the long-browsing, preferring-to-be-left-alone type, the ferrets had been cleaned and fed... she could have just walked out the door.
She doesn't, though. She takes her time and then some, not just to pack her backpack (a change of clothes, a couple of books, the usual contents of a lady's purse, a few... other things...), but also to get herself a little dolled up and finally just to make them wait for waiting's sake -- just to show them that she is a person with hypothetical Things To Do that do not include serving the interests of their libidos. Not that she thinks they view her with any particular disrespect or degradation, but they are young boys and the simple fact is that their instincts need to be tamed early or they will learn to whine and walk all over someone and expect things they've no right to. So her mother had always taught her.
Which is why it's actually a solid 45 minutes before she portkeys over to Tortuga and strolls up to the house, dressed in a sarong and halter-top, taking her sweet time with it.