Corrected entry: When the son has been infected by an insect, his father tells him to inject himself with the clear liquid ampoule first, then the other one, but the son is blind, he can't see the difference between the two ampoules. Nevertheless, he injects himself with one, then the other, not knowing if it will work or not, and he doesn't tell his father he can't see.
kh1616
5th May 2014
Correction: You said it yourself, he doesn't tell his father he can't see. So the dad doesn't know, or doesn't know he has gotten to that point yet. The father wouldn't be sure how long ago exactly the boy got bitten nor how long it would take for the poison to react to his particular anatomy. Thus he would be telling him by colors in hopes that he could still see them, and since the son didn't say he couldn't, naturally the father would assume he still could see. As to the son getting it right as far as which one in the right order, was all luck of the draw.
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