Well, Killian didn't have to think very hard about that inquiry. "You'll be great, love. I'm sure that turtle will adore you as much as I do," he grinned, and he was completely certain of it - so what if he didn't know how turtles operated? Anything should adore Stanley. If they didn't, well, that was their loss.
Happy Pets was indeed quite helpful when it came to supplies - they had a book or two on turtle care (and fish care, and hamster care - lots of selection) so Killian made sure to fish out one of those, along with the essentials. A tank (complete with a heat lamp - they needed the Vitamin D, and there was probably a joke there about how he appreciated Vitamin D as well but anyway), food, cleaning supplies for the tank. The credit card with seemingly no limit was a delight.
This was overall quite good though. They could keep Nameless Turtle in the tank and he'd go with them no matter where the hotel went. Other people had pets, so, Killian was confident in his ability to be a turtle father. "Now if this wasn't a productive day at the mall, I don't know what was," he mused.