"She was either too drunk or too sober"

HUH? I over heard this statement while walking back to the office after grabbing (my delicious) lunch. Even if I heard the entire conversation, and was able to put this statement in the proper context, I still don't think it would make any sense. Take a moment to think about the type of person who would make a dumb statement like this (additional info: there was a slight chuckle after "sober") and I have a feeling you would be exactly right.