Genghis , it doesn't have to be a complex simulator. Try firing up a flight sim on the home PC, fly some circuits then have a few of your favourite tipples and fly some more. Amazing how quickly the precision hand/eye co-ordination deteriorates with the application of alcohol....
I always wondered why I could never get that Corsair back on the deck of the carrier on Combat Flight Sim 2
Regarding the lunchtime single glass of wine and flying 5 hours later I'm with
barshaker and Monocock . On the basis that one's body will have processed the single glass of wine out of one's bloodstream by takeoff time what is the problem. Better to have rules based on scientific fact than rules based on very broad generalisations (8/10 hours bottle to throttle) which have been abused heavily in the past.