If asked, Shanks would point out it's fair and wise to be cautious in this place. Especially since, sometimes, it's the food, the water and the booze one has to look out for. They can be spiked with aphrodisiacs.

The rooms are, sadly, long-term. Shanks refuses to call this situation permanent, but he's, officially, been there for a year.

"Indeed, though I've not been called that before." He's amused when he speaks. "I did know Luffy when he was younger."

More significantly, they made a very important promise to each other. And, apparently, Luffy talks about him, to his crew. Or other people. This could always be another person. But he's definitely not Sanji, or Nami, or Usopp. And other people from their world typically recognize Shanks another way, Red-Haired Shanks, rather than Luffy's Shanks.

"With the way you say that...are you from our world, then?"