I forgot where this came from, but I heard it on this one parody show.
"Look, it's a rare endangered Black Sun Bear. ...LOOK OUT IT'S ABOUT TO ATTACK!!!" *Shoots Bear*
"Look, it's an idiot hunter who loves torturing innocent creatures for his amusement. ...LOOK OUT IT'S ABOUT TO ATTACK!!!" *Shoots Hunter*
I think it was parodying a scene from South Park.
Also, it's not really a quote, but I remember this joke from Family Guy where Neal Goldman is explaining something about Star Trek, and when asked to sit down, he gives a note to Meg saying "I want you." And Gwen looks back to see Neal in an Uncle Sam outfit. I guess it made me laugh cause I always thought that Uncle Sam poster looked funny for some reason.