Post two pics that relate to one another in a way you find humorous...

[_MementoMori_]

but don't explain how they relate. Leave that part to the imagination, but try not to be too obtuse. I'll go first:

[Topgumby]

http://i60.photobucket.com/albums/h38/msgte/Pancakes.jpg

http://i60.photobucket.com/albums/h38/msgte/carrotcat.jpg