Alcohol Consumption & Kiddush on Mashke

Letters, Sichos, and private conversations reveal the Rebbe's clear position on alcohol consumption: With very few exceptions, we are not to get drunk, drink more than 3 or 4 small cups of hard liquor (Mashke) at one sitting, or make Kiddush on Mashke. The Rebbe asks that we not come up with excuses to dodge these rules, and goes so far as to say that those who do so are not his Shluchim and should not participate in his Peulos. Most importantly, the Rebbe emphasizes that we do not need Mashke.