"I can't drink" = "I would drink if I could"

All the AV had to do was to convince you that you could drink, which it easily did, and you drank, on cue.

Another opening.

"I have no desire to drink" = "I might drink if I did"

In other words, that you "can't" drink, but hoping that you could drink and get away with it?

Close those loopholes...