Holmes snorts. "Very seldom did I observe that a lack of understanding prevented anyone from interfering with something they felt needed to be interfered with." He purses his lips thoughtfully. "One would think that if nature valued intelligence, it would have cropped up in other places before now. There are dolphins of course, and chimpanzees, but that could just be random, as we are ourselves.
Holmes nods decisively. "I rest my case."
"Now close the other," Holmes tells him.
I don't think so, so thanks! I would hope so. ;) The way I learned was to point at something and close your eyes one at a time. Whichever eye didn't make it look like your finger drifted from what you were pointing at was your master eye.