"Obviously I don't have any of it with me," says Rush in a tone of unending contempt regarding any such assumption. "I'm walking a dog, not gathering fucking data."

Said dog is not currently walking, nor does it seem eager to continue along their spontaneous route as of this encounter, but that is both irrelevant and completely incidental.

"Unless," he says with as much insouciant self-possession as he can possibly bring to bear, "you'd rather trust me to retrieve it from where I'm staying, as that particular building seems to be somewhat beyond your limits."