You're missing my point. In fact, I don't recall ever addressing you one way or another.
Edit2: I actually didn't read one single post of yours in this thread, yet you responded tersely with me. Ironically, I believe we are saying the same thing, except you seem to be minimizing personal responsibility. You said:
You say "inability" like he has some some sort of disability negating normal corgnitive function or personal action. Like there was some "outside force" disallowing him to make the right decision. What if he just plain "didn't care" or didn't think he would get caught? Drinking alcohol is one of the hardest drugs to detect due to its quick elimination from the body. You basically have to be intoxicated (or close to it) right before the test to test positive. It's a test that doesn't test for metabolites (ethanol's metabolites are naturely occurring substances in many foods). But, he was "unable" to drink before his drug test?
And btw, saying "politely" is very rude, but I'm sure you were just unable to keep it civilized.