A man who is married to his sheep...need I say more?
Marine 1: Look over there, we found Osama Bin Laden!
Marine 2: How can you tell? Theres thousands of them...
Marine 1: Look closely, 1 of them is fucking a sheep.
Marine 2: Roger that!
When one takes the action of farting but then realizes that they actually just shat themselves, thus creating the sense of being surprised.
Ray decides that it would be funny to let loose odorous gas, but then realises he shat himself in his attempt making him surprised when he discovers brown streaks lining his undergarments.