I won't post this in the humour section as it is for the grown-ups:

http://s3.amazonaws.com/twitpic/photos/full/383970237.png?AWSAccessKeyId=AKIAJF3XCCKACR3QDMOA&Expires=1314576965&Signature=qSEq78OjhtniA50jR7%2FWf5D5JtQ%3D

The sign is missing...

That's what's so funny! :p

Just kidding!

The sign is missing.....

Umm it's there for me so not sure how to fix it?.

http://www.boingboing.net/images/_albums_userpics_10001_family_planning.jpg

Did that work?

Yeah... I see that now...

Yeah... that a good one. Wonder if they caught on to the alternative meaning yet?