I don't even remember the OP quote for Dumb and Dumber. More like...
"Ooh, frost!" "Samsonite! I was way off!" "Want to hear the most annoying sound in the world? HYEAHAEHEAHHAJHTEJHAGJEHKGHKJAG!!" "So you're telling me there's a chance..." "I desperately want to make love to a schoolboy." Just when I think you couldnt possibly be any dumber, you go and do something like this and totally redeem yourself.
It's from when Lloyd leaves the convenience store, right before taking the wrong exit. It's a funny moment in context, but yeah there are dozens of better and more memorable quotes that could have been picked. ---