(Which shows that if you believe (from external evidence) that you should be drunk or perceptually impaired, your brain will go out of its way to induce this state, to the point of subconsciously degrading your perception appropriately. Which makes one wonder: what proportion of people's inabilities to achieve various things is the result of suggestion or conditioning, with no physical basis?)
death is part of mental conditioning.
My suspicion is that the mob who could be tricked into thinking water was vodka weren't the sharpest pencils in the set, and probably wouldn't do well on the test when told they were drinking water.
On the other hand, I doubt if you were physically drunk, you could think yourself sober in order to drive home.
They are all plainly nutters for partaking in this test originally.. can't you see this??
Of course, anyone who couldn't tell the difference between water and vodka must presumably have been partaking of something else beforehand.