I would be concerned that the disposal would have metal parts that would react poorly with salt water...
And now, I must be picky...
Westley says "Truly, you have a dizzying intellect." And, the line regarding R.O.U.S's is as follows:
Buttercup: Westley, what about the R.O.U.S.'s?
Westley: Rodents Of Unusual Size? I don't think they exist.
The Princess Bride is one of my favorite flicks--I have it memorized.