[He waves his hand again, brushing the question aside.] If you don't know already, it's not worth explaining. [Especially since he's not sure Sydni would even know what a birthday is to begin with.] It doesn't really matter anyway; I don't think anyone here cares about how old people are.

[Still, that's something he should talk to Kaoru about at some point. It's not fair if Haruhi's had a birthday while they missed out.]