Tanks a lot it was very helpfull

It's a joke or "internet meme," to be specific. Here's more information for you so you can understand what's going on: http://answers.yahoo.com/question/index?qid=20111206102854AAsjZf5

"I used to work at a restaurant like you" "Yeah." "but then I took an arrow to the knee." "What?" "I used to work at a restaurant like you, but then I took an arrow to the knee." "What does that mean?" "Like a bow and arrow?" Oh okay" "To the knee?" "Oh.... sucks, yeah [[my feet is hurt too. I have to work.]]" "Yeah?... I used to be married like you guys." "Cool" "but then I took an arrow to the knee." "Okay?" The [[ ]] indicates a part that's almost unintelligible... I'm not sure if I'm right. The rest I'm confident about. Hope that helps!