I went through a period in my life where I grossly abused alcohol. Following that i swore off alcohol entirely on the suspicion that I might be an alcoholic. However, what I discovered is that I wasn’t an alcoholic; I was just morbidly depressed, and drank as a coping mechanism. Having resolved the depression issue, I now, on a regular basis, have a single drink in the evening (and occasionally two or three on weekends), enough to get only slightly drunk.
I enjoy the taste of many different spirits and liquors, so the evening libation is more of an exploration of the bounty of the distiller’s art (and the mixologist’s) than it is an attempt to get drunk. We’ve also taken to using more alcohol in cooking; I have a wonderful recipe that calls for Jaegermeister, for example.
Lots of people harped on Bush for not admitting that he was an alcoholic. I find it very possible that he may not consider himself one.
Of course, he might not want to state that for political reasons. But I think it could easily be the case that he regarded it as a lesser case of problem drinking, and left it at that.