I recall my first birthday, I think
A million years ago
I know I need a real stiff drink
My time is running low

I haven't figured out
How birthdays know to show-up
Each year they're most devout
In forcing us to grow up

Birthdays are so functional
They make childhood disappear
Birthdays are so punctual
Appearing every year

I'm in my second childhood now
So, more birthdays I can use
I won't complain, since they'll allow
More life, which I enthuse

Stanley Cooper

http://www.poemhunter.com/poem/birthdays-8/