arse or elbow
 

http://www.puzzlegrid.com/elbowtest/

Pretty self expanatory..decide if the picture is a butt or an elbow.

I only got 9 right..

I got 10 right. Must say a collection of very peculiar elbows it is. [lol]

got 10. Luckily you see arses and elbows in the big picture in daily life otherwise that could lead to some weird situations

Otherwise I think Swingue would take offense to you poking him in the "elbow" :D

I sucked at this, and got 4/14

Very peculiar elbows those were

hmm, reminds me of a similar competition on a Irish TV show, Arse Crack or Boob Crack

I'll see if i can dig up the pictures

EDIT: A quick google and could not find them, your probably better off!!

Got a 9,

My GF got a 12!

MY wife did much better then me as well. So women have an evolution advantage distinguishing arses from elbows. Wonder what that's for.....

i got 9, will have to see how many the wife gets to test propains theory :)

Maybe it helps them pick not pick an arse to get married to?

I got 13/14!!! I'm very nearly an arse expert. I did have a methodology to distinguish the difference. I only missed the last one I selected. Looking at it again I should have selected arse based on my criteria.