one of my favorites is in the Itchy and Scratchy Land episode. The kids ask Marge if they can please go to I&SL for vacation and Marge says, "no, I already have our vacation picked out. we are going to the bird sanctuary." the kids react by having this look:
![Image](http://img.photobucket.com/albums/v662/iftheaccidentwillnot/simp.jpg)
cracks me up every time.