Birthdays have this horrible habit of both sneaking up on you, sinking their teeth into your kneecap and then making you feel really, really old for no aparent reason. (Vampiric damn occassion...)
I had actually suceeded in forgetting my birthday until Deidara mentioned it, and later Ino, but... oh, nevermind.
...They also have a horrible habit of bringing up memories I would rather remain dead. Unpleasurable memories.
So, thankyou I suppose for the birthday wishes -- but no thankyou all the same.