"Sorry, who is this?" The response manages to simultaneously sound drawling and distracted, as if the being on the other end is doing something else more important. He isn't, but he can put on a good show of it. Honestly, he's mostly just been explaining to his his plants that they can stand to be a bit greener, if they know what's good for them. A distraction isn't the worst thing in the world.

As long as said distraction doesn't know about it.

"It can't be a certain wizard of my acquaintance, he's allergic to England or some such thing."