On a mans 33rd birthday he gets a package at the Post Office and goes to collect it.

At the counter the woman brings his package to him, and the man says, Its my birthday today.

Oh, happy birthday, how old are you?, asks the Post Office worker.

33., says the man.

Well, have a good day., says the worker.

Thank you., replied the man.

To get home, the man has to take the bus. At the bus stop an old lady walks up and waits soon after he arrives.

The man says to the old lady,

Its my birthday today.

Oh, happy birthday., says the old lady.

Im…

No dont tell me., interjects the old lady, I know a unique way of telling how old somebody is.

Oh yeah? Whats that then?, asks the man.

If I can feel your balls for about 5 minutes, I can tell exactly how many years old you are., says the old lady.

I dont believe it., says the man.

Well let me prove it!, the old lady replies.

Im not going to let you feel my balls!, says the man.

Oh well, I guess youll never know then., replies the lady.

After a couple of minutes curiosity gets the better of the man and he says, Oh, okay then, you can do it.

After a good feel of the mans balls the woman finally takes her hands out of his pants. You are 33 years old exactly., she exclaims!

How in the world did you know that?!, exclaims the man, impressed.

I was behind you in the line at the Post Office., said the lady.