Mocking faith?

I found this on my Facebook wall today, though I’m not exactly sure where it originated. Nor have I heard of Simon Amstell before today. I do like this quote though, and I think it captures perfectly what Richard Dawkins had to say at the Reason Rally about how to deal with faith. I don’t think I would ever talk to a religious person (or any adult) as a child, and I’m sure Simon is making a joke here (he is a comedian, after all). But seriously, is there not a large grain of truth to this?