I also enjoyed Blade Runner. While the 'shoulder' quote is memorable, how about these:

Are these questions testing whether I'm a replicant or a lesbian, Mr. Deckard?

Ahh, and my personal favorite. I think about this one when remembering my last job...
Deckard: Have you felt yourself to be exploited in any way?
Zhora: Like what?
Deckard: Well... well, like to get this job. I mean, did... did you do, or... or were you asked to do anything lewd... or unsavory, or... or, otherwise repulsive to your... your person, huh?
Zhora: (Laughs) Are you for real?

All of the quotes from the movie can be found here.