You're not whinging. You've got a complete right to be well put out with me. In truth, you've got a very accommodating and generous nature, and while I never intended to take advantage of it, I'm sure that I have done. As your anecdote about fizzy squash so aptly demonstrates, I do have a history of gluttony.

I promise not to take advantage of your nature again.

If you want to see me, you are welcome to come to 12G whenever you'd like - just say the word. It won't be an imposition, I know that everyone here would enjoy your presence. Knowing you, I'm sure you could ever charm Mr Snape.

But if you do come 12G for a visit, come for yourself and because you want to, not because of any continued obligation to me.