Are you kidding me? You seem like you might be immortal!

Gosh, that's really nice, thank you! And I'll make sure to celebrate yours when it comes, too! We gotta make a big deal of it!

Sorry, I always get a little Existential Crisis-mode with every passing birthday. I wake up going "I've done nothing with my life!" and then have to remind myself that that is not, in fact, true.