[Alan smiles happily at this clearly he's found a way to keep little minds entertained as they make their way. That and he's enjoying teaching Castiel things -it's delightful.]

I'm glad. Now then let's see. How about something Green, my darlings?

[He's suggesting softly, giving a nod of approval to Castiel for his quick save.]

Nicely done. Are you certain you haven't watched after wayward children before?

[Alan chuckles to himself wondering how his co-workers would feel if they knew he thought of them as such - even William at times.]